Question

Given the function h(x)=2x+7, how do you find `(h(9)-h(3))/(9-3)`?

Answer 1

Reqd. Answer`=2.`

Explanation:

`h(x)=2x+7.`
`rArr h(9)=2*9+7=25, h(3)=6+7=13.`
`rArr(h(9)-h(3))/(9-3)=(25-13)/(9-3)=12/6=2.`