Consider the functions f(x) = x2 − 13 and g(x) = x + 5. What is the value of f[g(−4)]?
first find g(-4)
so :
g(-4) = (-4) + 5
g(-4) = 1
then find f(g(-4)) which means to substitute the value of g(-4) in for x in f(x)
so:
f(1) = 1^2 - 13
f(1) = 1 -13
f(1) = -12
Answer:
The value of \(f[g(-4)]\) is, -12
Step-by-step explanation:
Given the functions:
\(f(x) = x^2-13\)
\(g(x) = x+5\)
We have to find the value of \(f[g(-4)]\)
Substitute the value of x = -4 in g(x) we have;
\(g(-4) = -4+5 = 1\)
Now;
\(f[g(-4)] = f[1]\)
then;
\(f[g(-4)] = (1)^2 -13 = 1-13 = -12\)
Therefore, the value of \(f[g(-4)]\) is, -12