Question 1

The charges for renting a video are shown in the graph. Find the charge if the video is kept for 6 days. 
A) $5
B) $9
C) $6
D) $8
E) $7

Accepted Answer

D

Question 2

The graph below gives the heart rate of a woman before, during and after an aerobic workout. Is it true that her heart rate 15 minutes after beginning her workout was 150?

Accepted Answer

True

Question 3

Graph the linear equation. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

B

Question 4

The ordered pair (3, -4) satisfies the equation y =  3 x + 5.

Accepted Answer

The answer of The ordered pair (3, -4) satisfies the...

Question 5

The graph below shows how the path of a stream of water changes when the hose is held at two different angles. The stream shot up higher at the  angle.

Accepted Answer

The graph clearly shows that the stream shot up higher at the larger angle, which is demonstrated by the higher peak on the graph. Therefore, the statement is true.

Question 6

The graph shown gives the first-class postage rates in the year 1999 for mailing items weighing up to 5 ounces. According to the graph, which of the statements is incorrect? Weight (oz) and Postage Rate (cents) 
A) The postage cost for mailing a 2-ounce letter is 55 cents  .
B) The heaviest letter that could be mailed for 80 cents first class weighs 2 ounces.
C) The postage cost for mailing a 1-ounce letter is 33 cents.
D) The difference in postage for a 3.16-ounce letter and a 4.37-ounce letter is 20 cents  .
E) The postage cost for mailing a 4-ounce letter is $1.00.

Accepted Answer

According to the graph, the postage rate for a 2-ounce letter is 60 cents, not 55 cents. All other statements are correct.

Question 7

Graph the equation. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Graph the equation. 
A) 
B) 
C) 
D)...

Question 8

The graph below gives the heart rate of a woman before, during, and after an aerobic workout. Use the graph to answer the question.  What was her heart rate before beginning the workout? __________ beats/min

Accepted Answer

The answer of The graph below gives the heart rate...

Question 9

Refer to the line graph. In approximately what year did miners begin to earn more than construction workers? 
A) in 1984
B) in 1982
C) in 1988
D) in 1985
E) in 1990

Accepted Answer

The answer of Refer to the line graph. In approximately...

Question 10

The charges for renting a CD are shown in the graph. Find the charge if the CD is kept for 7 days. 
A) $7
B) $6
C) $3
D) $5
E) $4

Accepted Answer

From the graph, we can see that the rental charge for keeping the CD for 7 days is $5. Therefore, the answer is (D).

Question 11

Graph the equation using the intercept method. Label the intercepts on the graph. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Graph the equation using the intercept method....

Question 12

Complete the table.  
A)  
B)  
C)  
D)

Accepted Answer

The answer of Complete the table.  
A)  
B)...

Question 13

To correct her swing, a golfer is videotaped and then has her image displayed on a computer monitor so that it can be analyzed by a golf pro. Refer to the illustration to find the y -coordinate of the highlighted point where the x -coordinate is -7.  __________ units

Accepted Answer

The answer of To correct her swing, a golfer is...

Question 14

Graph the equation using the intercept method. Label the intercepts on the graph. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The intercepts can be found by setting x and y equal to 0, respectively. 
When x = 0, 2y = 10, so y = 5. This gives us the y-intercept of (0, 5). 
When y = 0, 3x = 9, so x = 3. This gives us the x-intercept of (3, 0). 
Plotting these two points and drawing a line through them will give us the graph of the equation. The correct choice is B, which shows the intercepts and the line passing through them.

Question 15

The cost ( c ) of playing an online computer game for a time ( t ) in hours is given by the equation c = 3 t + 5. Label the horizontal axis t and the vertical axis c , and graph the equation for nonnegative values of t .
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of The cost ( c ) of playing...

Question 16

Graph the equation using the intercept method. Label the intercepts on the graph. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Graph the equation using the intercept method....

Question 17

The equation  can be used to convert from degrees in Celsius to degrees in Fahrenheit. Identify the graph of the equation.
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of The equation  can be used to...

Question 18

Refer to the line graph. At what times (A, B, C or D) do you find the following conditions: runner 1 stopped and runner 2 running? 
A) A and B
B) A and C
C) A only
D) A and D
E) D and B

Accepted Answer

The answer of Refer to the line graph. At what...

Question 19

Scoliosis is a lateral curvature of the spine that can be more easily detected when a grid is superimposed over an X ray. Select the ordered pair that is not one of the "center points" of the labeled vertebrae. Note that T3 means the third thoracic vertebra, L4 means the fourth lumbar vertebra, and so on. 
A) 
B) 
C) (3,10)
D) (3,16)
E) (0,0)

Accepted Answer

The answer of Scoliosis is a lateral curvature of the...

Question 20

Graph the equation. 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Graph the equation. 
A) 
B) 
C) 
D)...

Quiz 3: Graphs; Equations of Lines; Functions; Variation

The charges for renting a video are shown in the graph. Find the charge if the video is kept for 6 days.

The graph below gives the heart rate of a woman before, during and after an aerobic workout. Is it true that her heart rate 15 minutes after beginning her workout was 150?

Graph the linear equation.

The ordered pair (3, -4) satisfies the equation y = 3 x + 5.

The graph below shows how the path of a stream of water changes when the hose is held at two different angles. The stream shot up higher at the angle.

The graph shown gives the first-class postage rates in the year 1999 for mailing items weighing up to 5 ounces. According to the graph, which of the statements is incorrect? Weight (oz) and Postage Rate (cents)

Graph the equation.

The graph below gives the heart rate of a woman before, during, and after an aerobic workout. Use the graph to answer the question. What was her heart rate before beginning the workout? __________ beats/min

Refer to the line graph. In approximately what year did miners begin to earn more than construction workers?

The charges for renting a CD are shown in the graph. Find the charge if the CD is kept for 7 days.

Graph the equation using the intercept method. Label the intercepts on the graph.

Complete the table.

To correct her swing, a golfer is videotaped and then has her image displayed on a computer monitor so that it can be analyzed by a golf pro. Refer to the illustration to find the y -coordinate of the highlighted point where the x -coordinate is -7. __________ units

Graph the equation using the intercept method. Label the intercepts on the graph.

The cost ( c ) of playing an online computer game for a time ( t ) in hours is given by the equation c = 3 t + 5. Label the horizontal axis t and the vertical axis c , and graph the equation for nonnegative values of t .

Graph the equation using the intercept method. Label the intercepts on the graph.

The equation can be used to convert from degrees in Celsius to degrees in Fahrenheit. Identify the graph of the equation.

Refer to the line graph. At what times (A, B, C or D) do you find the following conditions: runner 1 stopped and runner 2 running?

Graph the equation.