Question

How do you graph y = 3 x + 7 ?

Answer 1

graph{3x+7 [-38.9, 38.9, -19.45, 19.45]}

Explanation:

Just substitutes in any values you want form the coordinates.e.g
if `x=2`
then `y=3(2)+7`
`y=6+7`
`y=13`
so the coordinate would equal (2,13)