Answer:
b
Step-by-step explanation:
Vertex form is f(x) = a(x - b)^2 + c where the vertex is (b, c) and a is some constant.
So for the first part we have f(x) = a(x + 6)^2 - 1
for root -9:- a( -9+6)^2 - 1 = 0
9a - 1 = 0 , a = 1/9
The other 3 are derived in the same way.
so required equation is f(x) = (1/9)(x + 6)^2 - 1
Answer:
2 3/4
7 9/16 ÷ 2 3/4 = 2.75
so 2.75 as a fraction is 11/4
then we simplify 11/4= 2 3/4
Answer:
x=6
Step-by-step explanation:
-2x+15=7
-2x=7-15
-2x=-8
x=-8/-2
x=6
