Question

Use vertex form to write the equation of the parabola below.

1
35
A.
y=-(x - 1)2 +1
B. y = (x+1)2 + 2
B
y = (x-1)
Dy= (x+1)+1

Answer 1

It's the first option (A)

Explanation:

Since it's heading towards negative Ys so in ax²+bx+c, a is negative and only option that a is negative in it, is option A.

Additionally, the parabola is moved 1 unit towards positive Xs, so —(x—1)²

and it's one unit up so —(x—1)²+1