217,514 views
18 votes
18 votes
If f(x) = x^2 -5x +1 and g(x) =5x+4 what is the value of g•f (-2)

If f(x) = x^2 -5x +1 and g(x) =5x+4 what is the value of g•f (-2)-example-1
User Logankilpatrick
by
3.1k points

1 Answer

18 votes
18 votes

Answer:

The value of
gof (-2)=79

Explanation:

We have


f(x) = x^2 -5x +1 \\\\f(-2) = (-2)^2 -5*-2 +1 \\\\=15

Now we need to find


gof (-2)=g(15)


g(15) =5*15+4\\\\=79

User Pradyot
by
2.9k points