Answer:
28
Step-by-step explanation:
O sino:
Answer:
x= 4i or -4i
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helped :)
Answer: the answer is 88
Step-by-step explanation: you acting numbers together to get the amount of pens she had
I think that it’s 3 , not to sure
The coordinates of the vertex are (h,k) so we can write:-
f(x) = a(x -2)^2 - 4
now when f(x) = -7 x = 1 so:-
-7 = a(1-2)^2 - 4
-7 = a - 4
a = -3
so the vertex formula is
f(x) = -3(x - 2)^2 - 4
standard form:-
f(x) = -3(x^2 - 4x + 4) - 4
= -3x^2 + 12x - 16
