Given the functions f (x) = 7x + 13 and g (x) = x + 2, which of the following functions represents f[g (x) ] correctly?

Question

Sheldon Lambert

Mathematics

15 March, 22:22

Given the functions f (x) = 7x + 13 and g (x) = x + 2, which of the following functions represents f[g (x) ] correctly?

+2

Answers (1)

Know the Answer?

Tess Ochoa · Answer 1

f[g (x) ] = 7x + 27

Step-by-step explanation:

g (x) = x + 2,

f (x) = 7x + 13,

f[g (x) ] means you substitute the value of g (x) into the variable of f (x);

Which is 7 (x+2) + 13 = 7x + 14 + 13

= 7x + 27