Question 332182
(8, )

You need to find the y value that corresponds to x=8:


y=2x+5
y=2(8)+5
y=16+5
y=21


The point is (8,21).



Similarly for x=-1:

y=2(-1)+5
y=-2+5
y=3

The point is (-1,3)

The last one, they give you y=-1, and you have to find x:

y=2x+5
-1 = 2x+5
-1-5 = 2x
-6 = 2x
-6/2 = x
-3 = x


The point is (-3,-1)


Hope that helps!