## Sample Quiz

1. Solve the linear system by graphing, then __check__.

y = –x – 7

y = 3x + 5

2. Explain what POI stand for and what it is.

3. Solve by substation

y = 2x + 3

3x – 5y = –8

4. Solve by substation

y = 4x – 5

2x + 3y = 13

5. Solve by eliminations

3x + y = 7

2x – y = 3

6. Solve by elimination

3x + 2y = 7

5x – 2y = 1

## Answers to Sample Quiz

1. It does intercept and the POI is (–3, –4)

2. POI stands for Point of Interception and POI is when two lines intercept/ cross each other.

3. (–1, 1)

4. (2,3)

5. (2,1)

6. (1,2)