Hi there! I found a website that gives me different kind of problems to solve, but I am stuck on this one :) Can you help me please? Thanks!

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1 Answer
Jun 26, 2018

C. #g(x)=42x# (as indicated)

Explanation:

If #k(x)# is #f(x)# stretched by a factor of #7#
then #k(x)=7f(x)#.

If #j(x)# is #k(x)# reflected in the x-axis
then #j(x)=-k(x)#

Note that as given
#g(x)=j(k(x))=-(k(x))=-7f(x)=(-7)*(-6x)=42x#