8th Gr systems of linear equations

Question 1

To graph a system of equations the equations have to be in what format

Answer 1

y = mx+b

Question 2

The first point that you graph in an equation is

Answer 2

the y-intercept, b

Question 3

The 2nd point that you graph in an equation is

Answer 3

slope or m

Question 4

Slope is…

Answer 4

rise over run, change in y over change in x

Question 5

To use the substitution method you have to have one equation in what format

Answer 5

y = or x =

Question 6

When using the substitution method, what property do you use after you substitute

Answer 6

distributive property (multiply)

Question 7

When you rearrange an equation, what happens to the sign of a term when you move it to the other side

Answer 7

it changes signs, becomes opposite

Question 8

When using the elimination method what 2 things do you need to have?

Answer 8

the same coefficient and opposite signs

Question 9

When using the elimination method you have to do what kind of math with all the terms

Answer 9

multiply

Question 10

For the substitution method, after you have substituted and used the distributive property, what is the next step?

Answer 10

combine like terms

Question 11

If you have to rearrange an equation in the elimination method you have to make sure to….

Answer 11

line up y terms and x terms

Question 12

What are the 3 methods for solving systems of linear equations?

Answer 12

substitution, graphing, elimination