Question

Given that f(x) = 5x – 10 and g(x) = x + 3, solve for f(g(x)) when x = –1.


–30
0
10
12

Answer 1

find g(-1) first

Answer 2

notice g(x)=x+3
enter in -1 for x

Answer 3

actaully is hmm -1 well

Answer 4

your work isn't meaningless though
it is good example

Answer 5

\(\bf f(x)=5x-10\qquad g(x)=x+3
\\ \quad \\
f(\quad {\color{brown}{ g(x)}} \quad )=5{\color{brown}{ g(x)}}-10\implies
f(\quad {\color{brown}{ g(x)}} \quad )=5{\color{brown}{ (x+3)}}-10
\\ \quad \\
f(\quad {\color{brown}{ g({\color{blue}{ -1}})}} \quad )=5{\color{brown}{ g({\color{blue}{ -1}})}}-10\implies
f(\quad {\color{brown}{ g({\color{blue}{ -1}})}} \quad )=5{\color{brown}{ ({\color{blue}{ -1}}+3)}}-10\)

Answer 6

ok nevermind

Answer 7

:)

Answer 8

12?