Answer:
The vertex is (0,3), and the zeroes are at -1 and -7
Step-by-step explanation:
Since the function is going upward, the vertex is the minimum value
So the vertex is (0,3)
The zeros of a function are where the function touches the x-axis, or when y is 0.
We can find the zeros by making y (or f(x)) 0.
(x+4)^2-9=0
x^2+8x+16-9=0
x^2+8x+7=0
Factoring
(x+1)(x+7)=0
The zeroes are at -1 and -7.
