1. Lesson 3-4 Equations of Lines

2. Ohio Content Standards:

3. Recognize and apply angle relationships in situations involving intersecting lines, perpendicular lines and parallel lines.

4. Ohio Content Standards: Solve and graph linear equations and inequalities.

5. Ohio Content Standards: Write and use equivalent forms of equations and inequalities in problem situations; e.g., changing a linear equation to the slope-intercept form.

6. Ohio Content Standards: Describe and interpret rates of change from graphical and numerical data.

7. Ohio Content Standards: Recognize and explain that the slopes of parallel lines are equal and the slopes of perpendicular lines are negative reciprocals.

8. Slope-Intercept Form

9. y = mx + b, where m is the slope of the line and b is the y-intercept.

10. Point-Slope Form

11. y – y 1 = m (x – x 1 ), where (x 1, y 1 ) are the coordinates of any point on the line and m is the slope of the line.

12. Write an equation in slope- intercept form of the line with slope of 6 and y-intercept of -3.

13. Write an equation in point-slope form of the line whose slope is -3/5 that contains (-10, 8).

14. Write an equation in slope- intercept form for a line containing (4, 9) and (-2, 0).

15. Write an equation in slope-intercept form for a line containing (1, 7) that is perpendicular to the line y = -1/2 x + 1.

16. An apartment complex charges $525 per month plus a $750 security deposit.

17. Write an equation to represent the total annual cost A for r months of rent.

18. Assignment: Pgs. 148-150 16-42 evens, 56-70 evens