f(x)=x(squared)+7x-6 find: f(-3), f(x+4), f(-x)

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2 Answers

f(x)=x^2+7x-6

if X=-3,then

f(-3)=(-3)^2+7(-3)-6

f(-3)=9-21-6

f(-3)=-18. Answer

If X=x+4, then

f(x+4)=(x+4)^2+7(x+4)-6

f(x+4)=x^2+8X+16+7x+28-6

f(x+4)=x^2+15x+38. Answer

 

if X=-x,then

f(-x)=(-x)^2+7(-x)-6

f(-x)=x^2-7x-6. Answer.
by
chamrong
by Level 1 User (140 points)

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