Rate of Change and Introduction to Slope Answers

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1
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Which of the following properly describe “slope”? Select all that apply.

A
Option
Option A
B
Option
Option B
C
run / rise
D
rise / run
E
ratio of the change in y-values (rise) for a segment of the graph to the corresponding change in x-values (run)
3

Larry recorded his time as he ran. What was his average speed from hour 2 to hour 4?

Answers:
Selection 1:7 mph
Selection 2:7 mph
Selection 3:stayed the same
4

5 mph✔ 7 mph9.7 mph21 mph

A
5 mph
B
✔ 7 mph
C
9.7 mph
D
21 mph
5

sped upslowed down✔ stayed the same

A
sped up
B
slowed down
C
✔ stayed the same
7

Select all the information you included in your response.

A
Choose two sets of data (x and y values).
B
Calculate the difference between the two y values.
C
Calculate the difference between the corresponding two x values.
D
Slope is the difference in y values / difference in x values.
9

What is the constant speed of Fast Freddy?1/8✔ 1/41/22

Answers:
Selection 1:1/4
Selection 2:1/8
Selection 3:Freddy
11

Who ran faster?✔ FreddySamThey ran at the same speed.

A
✔ Freddy
B
Sam
C
They ran at the same speed.
13

Select all the information you included in your response

A
Joe’s mountain had a rise of 1200 and a run of 1500.
B
The slope of Joe’s mountain was 4/5.
C
Bob’s mountain had a rise of 900 and a run of 1000.
D
The slope of Bob’s mountain was 9/10.
E
Bob climbed the steeper mountain.
14

Select all the information you included in your response.

A
Mary has a rise of 12 and a run of 4.
B
Mary has a slope of 3.
C
Julie has a rise of 19 and a run of 6.
D
Julie has a slope of 19/6 or 3 and 1/6.
E
Julie will reach her goal first, as she has the greater slope.

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