Quiz about ALGEBRA POST TEST

Question 1

3x - 5 = -26

Accepted Answer

x=-21

Answer

x=21

Answer

x=-7

Answer

x=61

Question 2

A plant is 13 inches tall and grows 2 inches a week. Write an equation to show how long will it take for the plant to grow to 23 inches.

Accepted Answer

13+ 2t = 23

Answer

13t + 2 = 23

Answer

23t + 2 = 13

Answer

13t + 23 = 2

Question 3

At a rate of 25 miles per hour, it takes Henry 15 minutes to drive from the library to his house. Create a equation that shows how to find the distance that Henry traveled. Include units in your equation.

(Remember, 15 minutes is 0.25 of an hour)

Accepted Answer

25 x 0.25 = 6.25 miles

Answer

25 x 25 = 625 miles

Answer

.25 x .25 = 0.0625

Answer

62.5 miles

Question 4

Find the slope of the line that passes through
(1, -19) and (-2, -7)

Accepted Answer

-4

Answer

4

Answer

1/4

Answer

-1/4

Question 5

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2

Answer

-2

Question 6

Find the slope of the line.

Accepted Answer

-2

Answer

4/2

Answer

-4/2

Answer

2

Question 7

Which value is the slope in the equation:

y= 4x + 2

Accepted Answer

4

Answer

2

Answer

x

Question 8

What is the equation of this line?

Accepted Answer

y = -x + 2

Answer

y = 2x +2

Answer

y = 2x -2

Answer

Cannot be Determined

Question 9

Write the equation of the line.

Accepted Answer

y = -3/2x + 4

Answer

y = -2/3x + 4

Answer

y = 2/3x + 4

Answer

y = 3/2x + 4

Question 10

Given that the slope is  2/3 and the y intercept is -3 what is the equation of the line?

Accepted Answer

y = 2/3x - 3

Answer

y = 2/3x + 3

Answer

y = -2/3x - 3

Answer

y = -2/3x + 3

Question 11

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

Accepted Answer

26

Answer

3

Answer

58.5

Answer

2

Question 12

Is this a direct variation?
y=2x

Accepted Answer

yes

Answer

no

Question 13

Is this a direct variation?  y =2x + 1

Accepted Answer

No

Answer

Yes

Question 14

Factor completely.
k² -2k - 24

Accepted Answer

(k+4)(k-6)

Answer

(k+4)(k+6)

Answer

(k+6)(k-1)

Answer

(k-4)(k+6)

Question 15

Factor completely: x²-6x+8

Accepted Answer

(x-2)(x-4)

Answer

(x-1)(x-8)

Answer

(x+2)(x+4)

Answer

(x+1)(x+8)

Question 16

Factor completely: x²+16x+64

Accepted Answer

(x+8)(x+8)

Answer

(x+4)(x+16)

Answer

(x-8)(x-8)

Answer

(x+2)(x+32)

Question 17

What is the definition of function?

Accepted Answer

Every input has only ONE output

Answer

Has inputs and outputs

Answer

Inputs have different outputs every time

Answer

x-values and y-values

Question 18

What is the domain?

Accepted Answer

the set of all x-values

Answer

the set of all y-values

Question 19

What is the range?

Accepted Answer

the set of all y-values

Answer

the set of all x-values

Question 20

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Accepted Answer

D:{-4, 0, 1, 2}
R:{-4, -3, 1}

Answer

D: {1, -3, -4,}
R: {0, 1, 2, -4}

Answer

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

Question 21

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Accepted Answer

D:{0, 1, 2, -4}
R:{1, -3, -4}

Answer

D: {1, -3, -4,}
R: {0, 1, 2, -4}

Answer

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

Question 22

Evaluate f(-2) if f(x) = x + 3

Accepted Answer

1

Answer

-1

Answer

5

Answer

-5

Question 23

Evaluate f(-2) if f(x) = x²+ 3

Accepted Answer

7

Answer

-1

Answer

1

Answer

-7

Question 24

If h(a) = 3 - 2a²
Find h(-3).

Accepted Answer

-15

Answer

33

Answer

21

Answer

39

Question 25

Given h(x) = 5 - 9x, find h(8).

Accepted Answer

h(8) = -67

Answer

h(8) = -360

Question 26

3x + 2(4x - 4) = 3

Accepted Answer

1

Answer

4

Answer

3

Answer

2

Question 27

2x + 3(5x - 7) = 47

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 28

Darlene is collecting prize tickets. The equation y = 2x + 1 describes the relationship between the number of days (x) since she began collecting and the number of prize tickets (y) she has collected.

Which statement correctly describes a solution of the equation?

Accepted Answer

Darlene has collected 25 prize tickets at the end of 12 days.

Answer

Darlene has collected 2 prize tickets at the end of 1 day

Answer

Darlene has collected 4 prize tickets at the end of 9 days.

Answer

Darlene has collected 22 prize tickets at the end of 10 days

Question 29

Mary measured the heights of two different plants every day. Plant A was 1 inch tall when Mary began her measuring, and it grew 0.5 inch per day. Plant B was 3 inches tall, and it grew 0.25 inch per day.