Question

Please help me it would mean a lot !!!!!!!!!!!!!!

Answer 1

Explanation:

Given

f(x) = 4x + 7

so

f(a + h) = 4(a + h) + h

= 4a + 4h +h

= 4a + 5h

f(a) = 4a + 7

now by the question

`(f(a+h) - f(a))/(h)\\=(4a + 5h - 4a + 7)/(h)\\=( 5h + 7)/(h) \\= (5h)/(h) + (7)/(h) \\= 5 +(7)/(h)`

hope it helps :)