Question

Find the solution for the equation y=4x-3

Answer 1

(-4, -19)

Explanation:

To find the solution plug in the coordinates (x,y)

You want a set of coordinates that make it so that both sides are equal

For example:

(-4, -19)

y = 4x - 3

-19 = 4(-4) - 3

-19 = -16 - 3

-19 = -19

Good! Because both sides are equal

The first option gives you 0 = 16 (not true)

Third gives you 2 = 17 (not true)

Last one gives you 0 = -3 (not true)

Answer 2

(-4,-19)

Explanation:

Substitute the points into the equation and see if it is true

y = 4x-3

-3 = 4(4) -3

-3 = 16-3

-3 = 13 false

-19 = 4(-4) -3

-19 = -16-3

-19 -19 true