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This graph shows a scuba diver's ascent over time.
Scilba Fiver's Ascent
L Use the graph to find the slglte of the line. Tell what the slope means
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3. Write
an equation in slope-intercept form that represents the function.
Kate is planning a trip to the beach.
She used an estimated average speed to make a graph showing the progress she expects to make on her
4. Write
an equation in slope-intercept form that represents the function.
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Use the graph below to answer questions 8-12.
8. A bicyclist travels at 15 miles per hour,
Which line best represents this scenario?
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9. What is the speed of bicyclist B?
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11. How many bicyclists are
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In
1985, the average monthly cost of basic cable TV was $9.73 and has increased by about $1.35 each year since
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13. Identify the y-intercept (initial
14. Identify therate ofchange
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15. Write an equation in slope-intercept form showing the cost, C, in terms of years since I 985, y.
16. Find the approximate cost of basic cable in 2000?
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18. The equation h : 1.25t * 6 models the growth of a plant under the sunlight. The total hg[!t of the plant in
millimeters is represented by h3,nd r:11. number of hours the plant was in the sunlight.Interpret what th(lope
1.25 represents in this mod'ei.'=
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The height of the plant started at 1.25 mm.
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The plant costs $1.25.
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Every 1.25 hours in the sunlight the plant will grow 6 mm.
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The table shows the total cost for purchasing a certain number of t-shirts.
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night falls, the tempgg!g1ej!9g1ge9e!_{tg!tty. Choose the graph that best represents this situation.
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23. Jesse drives Ug"r9 f.glqjgLgol, runs into the house and grabs his sweatshirt and quickly leaves the
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24. The graph shows Lisa's walking speed on her treadmill.
Approximately how long did it take her to reach her maximum speed?
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B. 25 minutes
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C. 50 minutes
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FREE RESPONSE!
Organize your work inside the grid.
Make sure you don't write outside the grid.
Answer every part.
You and a friend are knitting a sock that will be 11 inches long.
Your friend knits the first 2 inches then gives you the sock to finish.
You knit at a rate of 1.5 inches per hour.
A. Write a linear equation that shows the lengthZ if you knit i hours.
(Hint! A linear equation can be written in slope-intercept form y
= mx + b .)
B. Graph the equation. Be certain to label the graph.
(Hintl You may want to create a table of values first so you have ordered pairs to plot.)
C. Determine how many hours it will take you to complete the sock. Explain how you got your
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