Question

Abigail's math teacher finds that there's roughly a linear relationship between the
amount of time students spend on their homework and their weekly quiz scores. This
relationship can be represented by the equation y = 6.2 + 69, where y represents
the expected quiz score and I represents hours spent on homework that week. What
is the meaning of the s-value when y = 91?

Answer 1

The time taken by the student to complete the weekly quiz if she had 91 is 3.55 hours

Given the linear relationship between the  amount of time students spends on their homework and their weekly quiz scores expressed as:

y = 6.2s + 69

If the value of y is 91, we need to get the value of "s"

Substitute s = 91 into the function to have:

91 = 6.2s + 69

6.2s = 91 - 69

6.2s = 22

s = 22/6.2

s = 3.55

Hence the value of s when y is 91 is 3.55

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