Question

Consider the functions f(x) = x^2 − 13 and g(x) = x + 5. What is the value of f[g(−4)]?

−12

3

−13

8

Answer 1

g(-4) = -4+5 = 1
f(1) = 1^2-13= -12

The first one

Answer 2

How did you know what number to put in the variable?

Answer 3

because you are asked for \(f(g(-4))\) so first you must find \(g(-4)\) and then you find \(f\) of the result from the first calculation

Answer 4

always work from the inside to the outside