f(x)=x to the 2nd power
f(x)=7(x+2)to the 2nd power
f(x)=-x to the 3rd power
Please let me know if you need any clarification. I'm always happy to answer your questions.
A. f(x)=x to the second power implies that the derived value of x must be raised to power 2 or squared
Hence for the first function, we substitute x with -4 and power the result by 2
The answer is -4squared hence g(x) =16
B.For the second function, we substitute x in the expression and square the result too= 7(-4 squared)+2)
C. for f(x)=-x we establish that g(x)=-(-4 power three/cubed)
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