Question

If the function f(x)=3x−cax+2 is a constant function, what is the value of a⋅c ?

Answer 1

Answer: 3

Step-by-step explanation:

Differentiation of a constant function is always equal to zero.

Here, f(x) = 3x - cax + 2

f'(x) = 3- ca. But f'(x) = 0 .

So, 3 - ca = 0

=> ac = 3.