Question

Your AssignmentStephanie earned 8 points for every book she read over the summer. The equation y = 8x represents Stephanie's points based on the number of books she read. Use the table and equation to complete the statements and find the number of books Stephanie read. 1. Stephanie earned 72 points. Did she read fewer than 2 books, between 2 and 5 books, between 5 and 6 books, or more than 7 books? Explain how you know. 2. The equation y = 8x gives the points, y, earned by reading x books.Use this equation to find the number of books Stephanie read to earn 72 points. Show your work.(Hint: Which variable can you substitute 72 for in y = 8x?)

Answer 1

1. The given equation is y=8x

where y is the points earned and x is the number of books read by Stephanie.

If she earned 72 points,

She must have read more than 7 books as the points corresponding to 7 books is 56 and she has earned more points than 56.

2.

Number of books read by Stephanie to earn 72 points can be determined as,

$\begin{gathered} 72=8x \\ x=9 \end{gathered}$

Thus, the number of books is 9.

The chart can be filled as,