Question

Find y if x is -3,-2,-1,0,1,2,3,4
Equation is y=2x

Answer 1

it is easy just plug in the values of x
let when x=-3 then y will be
y=2(-3)=-6

now when x=-2
y=2(-2)=-4

i hope you can do this for other values of x .

Answer 2

Okay but what if the equation is y=3x^2+6x+2

Answer 3

same put the values of x
for example if x=-3 then
y=3(-3)^2+6(-2)+2
y=3(9)-12+2
y=27-12+2
y=17

Answer 4

How did u get the -2