Question

Given f(x) = 3 and g(x) = 2x, a) find f(-4) b) find fg(1)

Answer 1

To find f(-4), substitute x = -4 into the function f(x) = 3. To find fg(1), find g(1) which equals 2, and substitute it into f(x), resulting in f(2) = 3.

Step-by-step explanation:

a) To find f(-4), we substitute x = -4 into the function f(x) = 3.
f(-4) = 3

b) To find fg(1), we first find g(1), then substitute the result into f(x).
g(1) = 2 * 1 = 2
fg(1) = f(2) = 3