Search
Ask a question
-1

High School Pre-Cal

Given f(x)=x2+x and g(x)=6-x, what is g(f(x))
 
A. x-13x + 42
 
B. x2 + 18x + 42
 
C. -x2 - x + 6
 
D. -x2 + x + 6

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Tracey M. | Math tutor of over 30 years dedicated to seeing your child succeed.Math tutor of over 30 years dedicated to...
4.6 4.6 (15 lesson ratings) (15)
-1
Answer C
 
take the expresiion (x+ x) and plug this in for x in the expression 6-x
 
6 - (x2 + x)
 
6 - x2 -x
 
-x2 -x + 6