For the function ƒ(x) = 4x − 3, evaluate and simplify the expression:

Question

 

a.
b.
c.
d.

Answer 1

The expression they have given is derivative of the function d/dix of 4x-3 =4

Answer 2

f(a+h) - f(a) = 4(a+h) - 3 - (4a - 3) = 4a + 4h - 3 - 4a + 3 = 4h

dividing that expression by h gives the result of 4.

so option D