Quiz about Unit 4 Multiple Choice Review

Question 1

The equation of a line is written as $$6x+y=10$$ . Which of the following is true about this line?

Accepted Answer

The slope is -6 and the y-intercept is 10.

Answer

The slope is 6 and the y-intercept is 10.

Answer

The slope is 10 and the y-intercept is 6.

Answer

The slope is 10 and the y-intercept is -6.

Question 2

The equation of a line is written as $$y-4x=-19$$ . Which of the following is true about this line?

Accepted Answer

You begin at -19.

Accepted Answer

You move up 4 over 1.

Answer

You move down 4 over 1.

Answer

You begin at -15.

Question 3

What is the slope of the line represented by the equation $$3y - 9x = 12$$ ?

Accepted Answer

3

Answer

-3

Answer

9

Answer

-9

Question 4

If the equation of a line is $$2x - 4y = 8$$ , what is the y-intercept of this line?

Accepted Answer

-2

Answer

2

Answer

4

Answer

-4

Question 5

What is the slope between $$\left(-8,-3\right)$$ and $$\left(8,\ 6\right)$$ ?

Accepted Answer

$$\frac{9}{16}$$

Answer

$$\frac{7}{12}$$

Answer

$$\frac{5}{8}$$

Answer

$$\frac{9}{0}$$

Question 6

What is the slope between $$\left(-6,-5\right)$$ and $$\left(12,\ 14\right)$$ ?

Accepted Answer

$$\frac{19}{18}$$

Answer

$$\frac{9}{16}$$

Answer

$$\frac{6}{11}$$

Answer

$$\frac{11}{6}$$

Question 7

What is the slope between $$\left(13,-8\right)$$ and $$\left(-10,\ 9\right)$$ ?

Accepted Answer

$$-\frac{17}{23}$$

Answer

$$\frac{9}{16}$$

Answer

$$-\frac{23}{17}$$

Answer

$$\frac{1}{3}$$

Question 8

What is the slope between $$\left(-18,\ 0\right)$$ and $$\left(-1,\ -15\right)$$ ?

Accepted Answer

$$-\frac{15}{17}$$

Answer

$$-\frac{23}{17}$$

Answer

$$0$$

Answer

$$\frac{15}{19}$$

Question 9

What is the slope of the line shown in the graph?

Accepted Answer

$$m=2$$

Answer

$$m=\frac{1}{2}$$

Answer

$$m=5$$

Answer

$$m=-2$$

Question 10

What is the slope of the line shown in the graph?

Accepted Answer

$$m=-\frac{3}{5}$$

Answer

$$m=3$$

Answer

$$m=\frac{5}{3}$$

Answer

$$m=-3$$

Question 11

What is the slope of the line shown in the graph?

Accepted Answer

$$m=-\frac{1}{6}$$

Answer

$$m=6$$

Answer

$$m=-\frac{3}{6}$$

Answer

$$m=-4$$

Question 12

What is the slope of the line shown in the graph?

Accepted Answer

$$m=\frac{5}{2}$$

Answer

$$m=\frac{5}{3}$$

Answer

$$m=\frac{2}{5}$$

Answer

$$m=-6$$

Question 13

Which of the following equations, when graphed in the coordinate plane, would be a horizontal line that passes through the point $$\left(-11,\ 8\right)$$ ?

Accepted Answer

$$y=8$$

Answer

$$8=m\left(-11\right)+b$$

Answer

$$x=-11$$

Answer

$$y=-11x+8$$

Question 14

Which of the following equations, when graphed in the coordinate plane, would be a vertical line that passes through the point $$\left(-11,\ 8\right)$$ ?

Accepted Answer

$$x=-11$$

Answer

$$8=m\left(-11\right)+b$$

Answer

$$y=8$$

Answer

$$y=-11x+8$$

Question 15

Which of the following equations, when graphed in the coordinate plane, would be a vertical line that passes through the point $$\left(20,\ -8\right)$$ ?

Accepted Answer

$$x=20$$

Answer

$$-8=m\left(20\right)+b$$

Answer

$$y=-8$$

Answer

$$y=20x-8$$

Question 16

Which of the following equations, when graphed in the coordinate plane, would be a horizontal line that passes through the point $$\left(20,\ -8\right)$$ ?

Accepted Answer

$$y=-8$$

Answer

$$-8=m\left(20\right)+b$$

Answer

$$x=20$$

Answer

$$y=20x-8$$

Question 17

Which of the following is the value of $$f\left(3\right)$$ for the piecewise function?

Accepted Answer

$$6$$

Answer

$$0$$

Answer

$$-3$$

Answer

$$3$$

Question 18

Which of the following is the value of $$f\left(-3\right)$$ for the piecewise function?

Accepted Answer

$$4$$

Answer

$$6$$

Answer

$$21$$

Answer

$$10$$

Question 19

Which of the following is the value of $$f\left(2\right)$$ for the piecewise function?

Accepted Answer

$$4$$

Answer

$$6$$

Answer

$$9$$

Answer

$$8$$

Question 20

For which value of x is the piecewise function have an output of 1?

Accepted Answer

$$-\frac{1}{2}$$

Answer

$$-6$$

Answer

$$\frac{5}{3}$$

Answer

$$4$$

Question 21

What is the correct domain for $$f\left(x\right)=4$$

Accepted Answer

$$2\le x<3$$

Answer

$$2<x\le3$$

Answer

$$2<x\le4$$

Answer

$$x=6$$

Question 22

What is the cost for 16 tickets?

Accepted Answer

$140

Answer

$125

Answer

$16

Answer

$110

Question 23

When does the price change per tickets?

Accepted Answer

4

Accepted Answer

16

Answer

$110

Answer

$50

Question 24

What is the domain when $$f\left(x\right)=\frac{25}{2}x$$

Accepted Answer

$$0\le x\le4$$

Answer

$$0\le y\le50$$

Answer

$$4<x\le16$$

Answer

$$x>16$$

Question 25

What is the common difference of the arithmetic sequence below?
$$-6,-1,4,9...$$

Accepted Answer

$$5$$

Answer

$$-5$$

Answer

$$-6$$

Answer

$$\frac{1}{5}$$

Question 26

The next term of the series $$11,\ 8,\ 5,\ 2$$ is...

Accepted Answer

-1

Answer

-2

Answer

1

Answer

2

Question 27

The first term in an arithmetic sequence is -8 and the common difference is 14. What is the 28th term?

Accepted Answer

370

Answer

378

Answer

1024

Answer

-324

Question 28

What is the 101th term in this sequence of $$3,\ 5,\ 7,\ 9$$ ?

Accepted Answer

203

Answer

101

Answer

103

Answer

200

Question 29

Which of the following inequalities matches the given graph?

Accepted Answer

$$y\le\frac{2}{5}x+1$$

Answer

$$y\ge\frac{2}{5}x+1$$

Answer

$$y\ge-\frac{2}{5}x+1$$

Answer

$$y\ge-\frac{2}{5}x-1$$

Question 30

Which of the following inequalities matches the given graph?

Accepted Answer

$$x<-1$$

Answer

$$x\ge-1$$

Answer

$$x\le-1$$

Answer

$$x>-1$$

Question 31

How can I tell if an inequality will have a solid line?

Accepted Answer

It has an equal sign.

Accepted Answer

The symbol has "or equal to."

Answer

The symbol is greater than.

Answer

You just guess.

Question 32

Which ordered pair is a solution of the inequality?

$$y\ge4x-5$$

Accepted Answer

(1, 1)

Answer

(3, 4)

Answer

(3, 0)

Answer

(2, 1)

Question 33

You have $28 to spend on Lay's Chips and Takis. Lay's chips cost $7 each and jumbo bags of Takis cost $4 each.

Let x = # of Lay's Chips

Ley y = # of bags of jumbo Takis

What equation should you use for this word problem?

Accepted Answer

7x+4y=28

Answer

28x+7y=4

Answer

4x+7y=28

Answer

4x+28y=7

Question 34

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

Accepted Answer

C = 0.20x + 15

Answer

C =15 (0.20x)

Answer

C = 15 + x + 0.20

Answer

C = 0.20 + 15x

Question 35

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

Accepted Answer

y = 40x + 150

Answer

y = 150 + 40

Answer

y = 150x + 40

Answer

y = 150 - 40x

Question 36

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing.

Accepted Answer

C = 8m + 50

Answer

C = 8m - 50

Answer

C = 50m - 8

Answer

C = 50m + 8

Question 37

An amusement park has an entrance fee, and then there is a cost to ride each ride. The total cost (y) can be modeled by y=1.5x+20 where x is the number of rides you ride. What does the y intercept represent?

Accepted Answer

The entrance fee

Answer

Number of rides

Answer

The cost for food

Answer

The cost per ride

Question 38

Charlie is at college that is 200 miles from his home. He travels on a road that has a speed limit of 50 miles per hour. Let D be the distance Charlie is from home.

Accepted Answer

$$D=200-50m$$

Answer

$$D=50m+200$$

Answer

$$D=200m-50$$

Answer

$$D=200m+50$$

Unit 4 Multiple Choice Review

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