Question

Please please please, Help me out!


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

is it C?

Answer 2

ok so what u wanna do is
since x is 1 it will be -1

Answer 3

so B?

Answer 4

compare each choice with the general forn

y = (x - b)^2 + c where (b,c) is the vertex

Answer 5

-1?

Answer 6

no compare the options with general form

Answer 7

y = ( x - b)^2 + c b = 1 and c = -2
y = ( x - 1)^2 - 2