Answer:
(-3, 1) (Answer H)
Step-by-step explanation:
f(x) = x^2 + 6x +10 can be rewritten by "completing the square" as
f(x) = (x + 3)^2 + 1, and by comparing this to y = (x - h)^2 + k, we see that h is -3, k is 1, so the vertex, (h, k), is at (-3, 1) (Answer H)
m = (y2-y1)/ (x2-x1)
m=(8-6)/(4-1)
m=2/3
9
x didn't change in value, y changed by 9
the distance between the two points is 9
is a vertical angle with 
. But is not 
