Solving Systems of Equations Review

Front

When does a system of equations have no solutions? Options: When the lines cross, When slopes of the lines are different, When the slopes are the same, There is ALWAYS a solution sir!

Back

When the slopes are the same

Front

Best method for solving the system:

2x + 2y = 11

3x - 4y = -2

Options: Substitution, Elimination, Graphing, None of these

Back

Elimination

Front

Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1
Options: Substitution, Elimination, Graphing, None

Back

Substitution

Front

Which variable will be eliminated? Options: x, y

Back

x

Front

What is the first step in solving the system of equations using elimination?

2x + 2y = -2

3x - 2y = 12

Back

Add the like terms. The y terms will cancel out.

Front

Which choice shows substitution correctly?

x = 3y -7

2x + 4y = 9

Back

2(3y -7) + 4y = 9

Front

Back

y

Front

Back

-1

Front

What is the solution to the system? Options: (0, 3), (1, -1), (-3, 1), (1, 3)

Back

(1, 3)

Front

What happens when you graph the exact same equation twice?

Back

You will have infinite solutions.