Question

May someone help me with this problem? :)
(What is the a value of the following function?)

Answer 1

a function cannot have a value.

a function can have a value AT A POINT,
like that function has the value of y = 2 at x=1

Answer 2

Well this is the question... @hartnn It confused me, too!!

Answer 3

I think it says the "A VALUE", not a value. @hartnn

Answer 4

Maybe that's more specific.

Answer 5

it is asking for value of `a` i think

Answer 6

Yea ^

Answer 7

"a" value ? what does it even mean ?

Answer 8

it should have highlighted/boldfaced \(a\)

Answer 9

guess it is referring to \(\large y = a(x-h)^2 + k\)

Answer 10

the vertex form! ohh

Answer 11

since vertex is at origin,
\[\large y = ax^2\]

Answer 12

pick any point on the parabola and plugin above ^^

Answer 13

8=a*-2^2 ?

Answer 14

that works !

8=a*(-2)^2

solve `a`

Answer 15

it gets -2, not one of the answers

Answer 16

\(\large y = ax^2\)


plugin x = -2, y = 8, you get :

\(\large 8 = a(-2)^2\)

Answer 17

\(\large 8 = a*4\)

Answer 18

ohhh so its 2? :)

Answer 19

yep!