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Monday December 9, 2013 Bell Ringer:PowerPoint Presentation

Monday December 9, 2013 Bell Ringer:

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### Monday December 9, 2013Bell Ringer:

The Slope-Intercept form of a line is

y = mx + b

Answer the following questions

1.) What does m stand for

2.) What does b stand for

3.) What is the slope and y-intercept of this equation:

y = - ¾ x – 3

What We are Learning Today:

- To solve linear equations by using:
- Tables
- Graphs
- Equations

A Few Definitions:

- Dependent Variable:
- Which axis?
- Independent Variable:
- Which axis?

New Words for What We Know:

- Rate of Change:
- Constant:

Our Problem:

- Alvin’s car rental charges $45 a day to rent a car and a one time fee of $25 for the car’s GPS. Bridget’s car rental charges $30 a day and a fee of $55 for the GPS.

Solve Using Table:

What is our rate of change?

What is our constant?

Equation:

How many days is a rental charge of $160 for Alvin’s?

When is renting from Bridget’s cheaper?

Practice Time!

- Zeno/Apex Worksheet
- Remember the y axis is the dependent axis
- Label your x and y axis with appropriate numbers
- Graph the lines on the same graph
- Need at least two points for each line

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