Answer:
Missing constant: 100
Step-by-step explanation:
perfect square (a - b)^2 = a^2 - 2ab + b^2
In this case
20x = 2 * x * 10
and
10^2 = 100
so
(x - 10)^2 = x^2 - 20x + 100
Answer:
A
Step-by-step explanation:
If the parabola opens left or right (is a horizontal parabola) then our formula needs to have an " y²" in it.
so it must be choice A
x= a(y-v)² + h
2EZ the answer is 19y - 9
