Question

The table shows the profit from a school book fair based on the number of books sold.
Books sold(x)
100
250
300
350
Profit f(x)
$50.00
$275.00
$350.00
$425.00


What is the rate of change for the function represented in the table?

$0.50
$0.67
$1.07
$1.50

Answer 1

1.5

Answer 2

thank you so much!

Answer 3

easy to replicate in R: lm(profit~book,data=data.frame(book=c(100,250,300,350),profit=c(50.00,275.00,350.00,425.00)))$coefficients