Mathematics
Grade-8
Easy
Question
The meaning of the slope in the context of the problem is,
- It costs $3 for each book.
- The cost of 3 books.
- Each book costs $1.
- $1 for 3 books.
The correct answer is: It costs $3 for each book.
The meaning of the slope in the context of the problem is it costs $3 for each book.
from graph we can see that line is passing through (5,30) and (15,60)
slope of line passing through (x1,y1) and(x2,y2) is y2-y1/x2-x1
slope=60-30/15-5
slope=3
slope =y/x=total expenses/number of book
so cost of 1 book will be $3
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