Quiz about Math 1 Mid Year Review

Question 1

The x values represent the...

Accepted Answer

Input

Answer

Output

Answer

Ordered Pair

Answer

Point

Question 2

The y-values represent the...

Accepted Answer

Output

Answer

Input

Answer

Ordered pair

Answer

Point

Question 3

What is a function?

Accepted Answer

When each input has exactly one output

Answer

Any set of ordered pairs

Answer

When each input has two outputs

Answer

When the input matches to two different outputs

Question 4

The set of all possible input values in a relation

Accepted Answer

Domain

Answer

Range

Answer

Function

Answer

Correlation

Question 5

The set of outputs in a relation

Accepted Answer

Range

Answer

Domain

Answer

Dependent Variable

Answer

Ordered Pairs

Question 6

A(n) __________ is a pair of numbers used to locate a point on a coordinate plane; the first number tells how far to move horizontally and the second number tells how far to move vertically.

Accepted Answer

Ordered Pair

Answer

Graph

Answer

Relation

Answer

Mapping

Question 7

A line that slants down from left to right has a(n)

Accepted Answer

negative slope

Answer

zero or no slope

Answer

postivite slope

Answer

undefined slope

Question 8

a line that slants up from left to right has a(n)

Accepted Answer

postiive slope

Answer

undefined

Answer

zero slope

Answer

negative slope

Question 9

The point on a graph where a function crosses the x-axis (Where Y=0 ,); point (x,0)

Accepted Answer

x-intercept

Answer

y-intercept

Question 10

The point on a graph where a function crosses the y-axis (Where X=0); point (0,y); the "b" in slope-intercept form.

Accepted Answer

y-intercept

Answer

x-intercept

Question 11

the vertical axis on a coordinate plane

Accepted Answer

y-axis

Answer

x-axis

Question 12

the horizontal axis on a coordinate plane

Accepted Answer

x-axis

Answer

y-axis

Question 13

rise/run; rate of change; Change in y/Change in x... These all refer to the

Accepted Answer

slope

Answer

x-intercept

Answer

y-intercept

Answer

undefined

Question 14

A function whose graph forms a straight line.

Accepted Answer

Linear function

Answer

quadratic function

Answer

exponential function

Question 15

All inputs (x- values)

Accepted Answer

domain

Answer

range

Answer

slope

Question 16

All outputs (y-values)

Accepted Answer

range

Answer

domain

Answer

slope

Question 17

Which test shows that if a line can be drawn so that it passes through more than one point on a graph, the relation is not a function?

Accepted Answer

Vertical line test

Answer

Horizontal line test

Answer

Draw a line

Answer

None of the above

Question 18

What rate describes how one quantity changes in relation to another quantity?

Accepted Answer

Rate of Change

Answer

Y-intercept

Answer

X-value

Answer

y = mx + b

Question 19

A linear function is a function whose graph is a...

Accepted Answer

Straight line

Answer

Curved line

Answer

An upright U shape

Answer

None of the above

Question 20

A relation that pairs each domain value with exactly one range value

Accepted Answer

Function

Answer

Graph

Answer

Mapping Diagram

Answer

Table

Question 21

Check the correct answers: In order to be a linear function:

Accepted Answer

It's graph must be a straight line

Accepted Answer

Each x-value has only one y-value

Answer

It must pass a polygraph test

Answer

It's graph must be a parabola

Question 22

Is this image Linear or nonlinear?

Accepted Answer

nonlinear

Answer

linear

Question 23

Is this graph a function?

Accepted Answer

Not a Function

Answer

Function

Question 24

Is this graph a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 25

Which show a linear function? Select 2.

Accepted Answer

Option B is correct

Accepted Answer

Option D is correct

Answer

A.

Answer

C.

Question 26

A sequence in which the terms differ by the same number

Accepted Answer

arithmetic sequence

Answer

function sequence

Answer

math sequence

Answer

relation sequence

Question 27

Graphs with connected lines or curves

Accepted Answer

continuous graph

Answer

scatter plot

Answer

discrete graph

Answer

function graph

Question 28

Graphs with only distinct points

Accepted Answer

Discrete graph

Answer

Sequence

Answer

Function

Answer

Continuous graph

Question 29

Slope is know as rise/

Accepted Answer

run

Answer

fall

Answer

none

Answer

rise

Question 30

What does 'b" represent in y=mx+b

Accepted Answer

y-intercept

Answer

x-intercept

Answer

nothing

Answer

slope

Question 31

In the equation y=mx+b, what does the m represent?

Accepted Answer

slope

Answer

y-intercept

Answer

x-intercept

Answer

nothing

Question 32

Does this mapping diagram represent a function?

Accepted Answer

Yes, because there are no repeating input values

Answer

No, because there are repeating input values

Question 33

Is the relation a function? Why.

Accepted Answer

No, because the x-value 11 has two y-values paired with it.

Answer

Yes, because the x-value 11 has two y-values paired with it.

Answer

Yes, because each x-value has only one y-value paired with it.

Answer

No, because each x-value has only one y-value paired with it.

Question 34

Given the sequence 2, 8, 14, 20, 26, ... What is the common difference?

Accepted Answer

6

Answer

2

Answer

4

Answer

8

Question 35

Describe the pattern in the sequence. Find the next three terms.

13, 15, 17, 19,...

Accepted Answer

Add 2; 21, 23, 25

Answer

Add 2; 23, 25, 27

Answer

Multiply by 2; 38, 76, 152

Answer

Add -2; 17, 15, 13

Question 36

Is the sequence geometric? If so, identify the common ratio.

6, 12, 24, 48

Accepted Answer

yes, 2

Answer

yes, -2

Answer

yes, 4

Answer

no

Question 37

What is the difference between an arithmetic sequence and a geometric sequence?

Accepted Answer

One has a common difference and one has a common ratio.

Answer

One is the sum of the numbers and one is just a list of numbers.

Answer

One you can write an nth term and one you cannot.

Answer

None of these are correct.

Question 38

Which sequence is a geometric sequence with a common ratio of 2?

Accepted Answer

5, 10, 20, 40, ...

Answer

5, 3, 1, -1, ...

Answer

5, 7, 9, 11, ...

Answer

5, 15, 45, 135, ...

Question 39

Which sequence is an arithmetic sequence?

Accepted Answer

3, 7, 11, 15, ...

Answer

3, 6, 2, 7, ...

Answer

3, 6, 12, 24, ...

Answer

3, 6, 10, 15, ...

Question 40

Find the slope of the line.

Accepted Answer

4

Answer

1/4

Answer

-1/4

Answer

-4

Question 41

Calculate the rate of change.

Remember, you only need to use 2 of the ordered pairs. Subtract the y's on the top and the x's on the bottom.

Accepted Answer

6

Answer

1/6

Answer

-6

Answer

-1/6

Question 42

Which character was a Jedi, a solider, and a pilot?

Accepted Answer

Luke Skywalker

Answer

Obi-wan Kenobi

Answer

JJ Abrams

Answer

Anakin Skywalker

Question 43

The initial fee to join a gym is $200. It costs $55 per month to have a membership. Write a function for the total cost, C(x) of having a membership for x months.

Accepted Answer

C(x) = 200 + 55x

Answer

C(x) = 18 + 200x

Answer

C(x) = 200x + 55

Answer

C(x) = 55 + 18x

Question 44

Determine if the graph is increasing or decreasing.

Accepted Answer

Increasing

Answer

Decreasing

Answer

Neither

Answer

Undefined

Question 45

Solve the following equation for y.

$$9x+y=7$$

Accepted Answer

$$y=-9x+7$$

Answer

$$y=\frac{9}{7}x+7$$

Answer

$$y=-2x$$

Answer

$$y=7x$$

Question 46

This is an example of:

Accepted Answer

Exponential Growth

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Decay

Question 47

This is an example of:

Accepted Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Growth

Answer

Exponential Decay

Question 48

This is an example of: $$f\left(x\right)=\ 25\ \left(\ 0.20\right)^x$$

Accepted Answer

Exponential Decay

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Growth

Question 49

How do you know that this function represents exponential decay? $$f\left(x\right)=\ 25\ \left(\ 0.20\right)^x$$

Accepted Answer

Because the 0.20 is less than one

Answer

Because the 25 is bigger than one

Answer

Because the 0.20 is bigger than one

Answer

Because the 25 is less than one

Question 50

This is an example of: $$f\left(x\right)=\ 0.25\ \left(\ 1.3\right)^x$$

Accepted Answer

Exponential Growth

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Decay

Question 51

How do you know that this function represents was exponential growth? $$f\left(x\right)=0\ .25\ \left(\ 1.3\right)^x$$

Accepted Answer

Because the 1.3 is bigger than one

Answer

Because the 0.25 is bigger than one

Answer

Because the 0.25 is less than one

Answer

Because the 1.3 is less than one

Question 52

This function represents the number of ants in a colony $$f\left(x\right)=3\ \left(\ 2\right)^x$$ How many ants did you begin with?

Accepted Answer

There was 3 ants

Answer

There was 2 ants

Answer

The equation doesn't tell us

Question 53

This function represents the number of ants in a colony $$f\left(x\right)=3\ \left(\ 2\right)^x$$ What is the growth rate?

Accepted Answer

The ants are growing by a factor of 2

Answer

The ants are growing by a factor of 3

Answer

The equation doesn't tell us

Question 54

How do we know that is an example of an exponential growth?

Accepted Answer

Its a smooth curve going up

Answer

Its a line going up

Answer

Its a line going down

Answer

Its a smooth curve going down

Question 55

A flea medicine breaks down at a rate of 20% per hour, x. This is the rate of decay of the medicine. The initial dose is 60 milligrams. Which of the following represents the equation the models the amount of flea medicine left in an animal after x hours?

Accepted Answer

$$y=60\left(.8\right)^x$$

Answer

$$y=60\left(.2\right)^x$$

Answer

$$y=20\left(60\right)^x$$

Answer

$$y=60\left(1.2\right)^x$$

Question 56

Select all the equations that represent exponential decay.

Accepted Answer

$$y=60\left(0.7\right)^x$$

Accepted Answer

$$y=4\left(\frac{1}{2}\right)^x$$

Accepted Answer

$$y=3\left(0.6\right)^x$$

Answer

$$y=\frac{1}{2}\left(4\right)^x$$

Answer

$$y=80\left(1.4\right)^x$$

Question 57

Elliot wants to sign up for a gym membership. The gym requires a $35 fee to sign up, then $12 every month. Write an equation to find the amount Elliot will pay for his gym membership "y" after "x" number of months.

Accepted Answer

y = 12x + 35

Answer

y = 35x + 12

Answer

y = 12x - 35

Question 58

^{What is the solution?}

Accepted Answer

(1, -1)

Answer

1

Answer

-2

Answer

(1, 2)

Question 59

How many solutions will this system have?

Accepted Answer

No solution

Answer

One Solution

Answer

I Don't Know

Answer

Infinitely Many Solutions

Question 60

Is the function displayed by the table above exponential growth or exponential decay? why?

Accepted Answer

exponential decay because the number of CDs purchased are decreasing as time increases

Answer

exponential growth because the number of CDs purchased is increasing as time decreases

Answer

exponential decay because mr. chacon says so

Answer

exponential growth because ms. ingle says so

Question 61

Is the image above exponential growth or decay? Why?

Accepted Answer

exponential growth because 'y' increases as 'x' increases

Answer

exponential growth because 'y' decreases' as 'x' increases

Answer

exponential decay because 'y' increases as 'x' increases

Answer

exponential decay because 'y' decreases as 'x' decreases

Question 62

Evaluate f(-3)

Accepted Answer

f(-3) = -3

Answer

f(-3) = 0

Answer

f(-3) = 2

Answer

not enough information to give an answer

Question 63

f(x)=4x+5
f(4)=

Accepted Answer

21

Answer

-11

Answer

-31

Answer

25

Question 64

A company is selling bubble gum. The function g(x)=3x+4 tells the company how much to charge someone who is buying x packages of bubble gum. Find g(8) and tell what it means within the context of the problem.

Accepted Answer

g(8)=28. This means that 8 packages of gum costs $28.

Answer

g(8)=8. This means that after 8 packages of gum, the company makes $8.

Answer

g(8)=42. This means that 8 packages of gum costs $42.

Answer

g(8)=24. This means that 8 packages of gum costs $24.

Math 1 Mid Year Review

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