A track runner is eager to see if practicing helps her improve. She has plotted data on her weekly 100-meter dash times (s) as w

Question

3 years ago

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A track runner is eager to see if practicing helps her improve. She has plotted data on her weekly 100-meter dash times (s) as w

ell as the number of hours spent practicing during the previous week (h). Which of the following is most likely to be the equation of this trend line?
s = 1/5h = 20

s = -1/5h + 20

h = 1/5s + 20

h = -1/5s + 20

Mathematics

1 answer:

insens350 [35] · Answer 1 · 2022-07-02T20:06:05+03:00

Answer:

$\displaystyle s = -\frac{1}{5}h + 20$

Step-by-step explanation:

Time is the dependent variable, so you set your function equal to s. Then, the correlation of the graph has a $\displaystyle -\frac{1}{5}$ rate of change [slope] from the y-intercept of $\displaystyle [0, 20],$ so we choose this answer choice.

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