Question

Which of the following equations is of a parabola with a vertex at (1, 2)? A) y= (x-1)²- 2 B) y= (x-1)²+2 C) y=(x+1)²-2 D) y=(x+1)²+2

Answer 1

It forsure isn't A because the -2 makes the y negative.
C the +1 makes the x negative and theres a -2
and D...Well the same.
So the answer is A.

Answer 2

if it forsure isn't A how is the answer A?