Question

For `y = x^2 - 2`, if the x-values are -3, -2, 0, 1, 2 what are the y values?

Answer 1

`y_(-3)=7`
`y_(-2)=2`
`y_(0)=-2`
`y_(1)=-1`
`y_(2)=2`

Explanation:

`y = x^2 - 2`

`y_((-3)) = (-3)^2-2 = 9-2 = 7`
`y_((-3))=7`

`y_((-2))=2`
`y_(0)=-2`
`y_(1)=-1`
`y_(2)=2`

Answer 2

See below...

Explanation:

By plugging in the corresponding `x` values, we can get the `y` value, as the answer is equal to the `y` value.

When:

`x=-3,-2,0,1,2` Shown by the equation, `y=x^2-2`. Just plug in the corresponding `x` value, to obtain the `y` value.

`therefore` when `x=-3` `y=(-3)^2-2=9-2=7` remembering a `- xx - =+`

when `x=-2`

`y=(-2)^2-2=4-2=2`

when `x=0`

`y=0^3-2=0-2=-2`

when `x=1`

`y=1^2-2=1-2=-1`

when `x=2`

`y=2^2-2=4-2=2`