Answer
A) $(-2,-20)$
B) $(x>-2)$
C) $x<-2$
D) $(-1,0),\ (9,0)$
E) $(0,9)$
F) $f(-4)= 9.5$
G) $ x= -5$ and $ x= 3$
Work Step by Step
A) The graph shows that when $x=-1$, $y= 4$. The vertex of the function is at $(-2, -20)$.
B) The function is increasing for $x> -1$.
C)The function is decreasing for $x< -1$.
D) The graph does not cross the $x$-axis. It has no $x$ intercept.
E) When $x= 0$, $y= 5$. The vertical intercept is at $(0,5)$.
F) We see that $f(-4) = 9.5 $.
G) We see that $f(x) = -10$ for $ x= -5$ and $ x= 3$.
