1. 5.1 – Writing Linear Equations in Slope- Intercept Form

2.  Today we will be learning about: ◦ Using slope-intercept form to write an equation of a line ◦ Modeling a real-life situation with a linear function

3.  We can write equations in slope-intercept form given a slope and a y-intercept. ◦ y = mx + b  m = slope  b = y-intercept  slope-intercept form activity slope-intercept form activity

4.  Example 1 ◦ Write an equation of a line whose slope is ¾ and whose y-intercept is -4.

5.  Example 2 ◦ Write an equation of the line shown in the graph.

6.  Example 3 ◦ Write a linear model that reflects the cost of an internet connection. Use the information shown on the Internet bill. ◦ How much would a 5-hour internet connection cost?

7.  Example 4 ◦ A plumber charges $66 for the first hour of a service call and $45 for any additional hours. Write a linear model to reflect the plumber’s charges.

8. HOMEWORK Page 276 #12 – 24 even, 28 – 29