Question

I need help with both questions.

Answer 1

y = 17x

$595

Explanation:

`(y_(2) -y_(1) )/(x_(2) -x_(1) )` =
`(85 - 51)/(5 - 3)` =
`(34)/(2)` = 17 (find the slope, gradient or rate of change)

The y intercept is 0. Zero hours = 0 charge.

y = 17(35)

y = 595