Question

Evaluate the function:

f(x)=4x−1, find f(9)

Answer 1

f(9) = 35

Explanation:

To solve this, you can take 9 and replace both x's with it and then complete the equation;

f(x) = 4x - 1

f(9) = 4(9) - 1

f(9) = 36 - 1

f(9) = 35

Hope this helps!