Given y = 4x
And the domain is {-4,-2,0,2}
So, we need to find the value of y when x = -4 , -2 , 0 , 2
Then graph the points as (x,y)
So, at first we will find the values of y
when x = -4 , y = 4 * -4 = -16
when x = -2 , y = 4 * -2 = -8
when x = 0 , y = 4 * 0 = 0
when x = 2 , y = 4 * 2 = 8
The graph will be as following :