1. Agenda Warm-up Lesson 19 hw questions?
Lesson 20: graphing on a coordinate plane
Exit card

2. Warm-up
Solve. Check your answer = x – y + 8 = -11

3. Lesson 19 hw questions?

4. Lesson 20: graphing on a coordinate plane
The Coordinate Plane

5. Graph each ordered pair on a coordinate plane. Label each point
(2, 3)
(0, -5)
(-3, -4)
“Walk to the elevator,
go up or down”

6. Dependent and independent variables
When there is a relationship between two variable quantities, one variable is the independent variable and the other is the dependent variable. The dependent variable always depends on the independent variable

7. For each pair of variables, identify the independent variable and the dependent variable.
The distance traveled, the amount of gas used
The water bill, gallons of water used

8. A solution to an equation with two variables is an ordered pair that makes the equation true. Complete the table for the equation y = 3x - 4 x y -1 2
1/3

9. A friend’s allowance wages are about $15 per day
A friend’s allowance wages are about $15 per day. His allowance payment from his parents is dependent on him completing all of his given chores for the day. The total allowance can be calculated using the equation y=15x. Find the pay when he works 5, 7, 10, and 12 days.

10. What to do next?
Complete Exit Card and turn in to Mr. Cathers by dismissal
Lesson 20 Homework:
*A – J, #1 – 19 Odds
*Due Thursday