Question

Which function has a vertex on the y-axis?

f(x) = (x – 2)2
f(x) = x(x + 2)
f(x) = (x – 2)(x + 2)
f(x) = (x + 1)(x – 2)

Answer 1

May I help?

Answer 2

yes plzzzz

Answer 3

Thanks.

Answer 4

Foil your binomials and graph them from standard quadratic form!

Answer 5

Are you familiar with graphing the quadratic equation?

Answer 6

kind of but not rly

Answer 7

Ok
I think you know that the general form of a quadratic equation look s like
\[f(x)=ax^2+bx+c\]

Answer 8

Do you know how to FOIL the binomials showed?

Answer 9

first outer inner last?

Answer 10

??

Answer 11

im pretty sure its f(x) = (x – 2)(x + 2)

Answer 12

foil

Answer 13

for f(x) = (x – 2)(x + 2)
how many roots do you have?

Answer 14

wdym roots?

Answer 15

???

Answer 16

I mean number of solution?