Question

3. x = –4y + 4

2x + 8y = 8
a. one
b. two
c. infinite
d. none

Answer 1

What does the question ask for?

Answer 2

how many solutions does the system have

Answer 3

Ok so starting off in a general form, do you know how or what ways you can solve a system of equations?

Answer 4

No

Answer 5

Ok well there are a few ways, two common ones. Let's skip that though, for now. What do you know about a line? Let's say y=mx+b.

Answer 6

I don't know any of this it's my first time doing it and my teacher didn't explainmuch because we didnt have enough time

Answer 7

Ok. Well I don't want to give like a whole lesson, but y=mx+b is the equation of a line. With m being the slope and b being a y-intercept on a graph. Anyway, for a system to have a solution, there first has to be two different equations. If you rearrange and maybe simplify those two equations are they different?

Answer 8

More specifically, the equations don't need to be different to have a solution. They need to be different to have a set solution...