1. SECTION 13.2 EQUATIONS OF LINES You did some of this before break!

2. Memory Refresher! Forms for Linear Equations Slope-Intercept Point-Slope Standard Important Tid-Bits The book doesn’t really use standard form, but tests/quizzes/ACT/AP tests do! When it is not stated, answer in point-slope form Any of the forms can be converted into each other!

3. Horizontal and Vertical Lines Horizontal Lines Slope = Cross the ___ axis Vertical Lines Slope = Cross the ___ axis

4. Other types of Lines… Perpendicular Lines Slopes are… Ex: What is the slope of the line to… Parallel Lines Slopes are… Ex: What is the slope of the line || to…

5. EX 1: Given (2, -6) and (4, 1) Write in pt/slope form: Write in Standard Form:

6. EX 2: Write the eq. of the line with a slope of 4 and x-intercept of 9. Intercepts twice those of 4x + 3y = 12

7. EX 3: Does the point (6, 7)… Lie on the line with a slope of -5 and a y-intercept of 4?

8. EX 4: Write the equation of the…in pt/slope form. a.) Median to AB b.) bis of ABc.) Alt to AB from C