Question

Is (3,-4) a solution to the equation 5x + 2y=7?

Answer 1

yes it is

Explanation:

to check for stuff like this, you have to use your points. substitute your numbers for `x,y` into the equation and see if it matches what you have on the other side

Answer 2

Yes, it is.

Explanation:

Plug in the points and find out:

`color(white)=>5x + 2y=7`

`=>5(3)+2(-4)stackrel?=7`

`color(white)=>15+(-8)stackrel?=7`

`color(white)=>15-8stackrel?=7`

`color(white)=>7=7`

The statement is true, so the point `(3,-4)` is a solution in the equation.