Question

Graph each equation.

y = 4x -3

y = 7

y + 3 = 1/2(x + 2)

-3x + 5y= 15

Answer 1

Try it yourself, you know it's the equation of a straight line so...

Answer 2

Yes, it cuts the axis of Y at point 7 and it's pararell to the X axis.

Answer 3

So it never cuts x, that's why it doesn't have a value of x.