Functions Test Prep AK

The table above shows a relationship between $x$ and $y$. Which of the following equations describe that relationship?

ANSWER: (E) $f(x)=-3x+4$

2. For which of the following functions is $g(-5)>g(5)$?

ANSWER: (B) $g(x) = x^2-x$

3. The figure above shows the graph of the function $h(x)$. Which of the following $x$ values has only one $h(x)$?

ANSWER: (A) $h(x)=-5$

4.  If $f(x)= 8x^2-4x+7$, find $f(-3)$.

ANSWER: 91