Question

Given the function f(x) = 3x + 1, evaluate f(a + 1).

Answer 1

This is really simple if you get it the answer is 3a+4

Answer 2

• 3a + 4

Explanation:

Given the function

• f(x) = 3x + 1,

Substitute x with a + 1

• f(a + 1) = 3(a+1) + 1 =
• 3a + 3 + 1 =
• 3a + 4