Download presentation

Presentation is loading. Please wait.

Published byGriffin Barrett Modified over 8 years ago

1
Warm-Up Graph. Then find the slope. 5 minutes 1)y = 3x + 2 2) y = -2x +5

2
7.5.1 Equations and Slope 7.5.1 Equations and Slope Objectives: To find the slope and y-intercept of a line from an equation

3
Finding Slope from an Equation Find the slope of the line y = 3x +1. y = 3x + 1 xy 1 4 7 0 1 2 -8-6-4 -2 2 42 68 4 6 -4 -6 -8 -2 8 rise: -6 run: -2

4
Find the slope of the line y = -3x + 7. Example 1 The slope is -3.

5
Practice 1)y = 3x + 9 2) y = -2x – 7 3) y = 8 - 3x Find the slope of each line.

6
Find the slope of the line 3x + 5y = 7. Example 2 Solve for y3x + 5y = 7 -3x 5y = 7 – 3x 55 The slope is.

7
Practice 1)4x + 5y = 7 2) 3x + 8y = 9 3) 5x – 4y = 8 Find the slope of each line.

8
Find the slope of the line y = 2x - 4. Slope-Intercept Equation y = 2x - 4 xy -4 -2 0 0 1 2 -8-6-4 -2 2 42 68 4 6 -4 -6 -8 -2 8 rise: -4 run: -2 The y-intercept is -4.

9
y = mx + b Slope-Intercept Equation slopey-intercept y = 4x + 8 slopey-intercept= 4= 8 y = 2x - 3 slopey-intercept= 2= -3

10
Find the slope and y-intercept of the line y = -4x + 4. Example 1 The slope is -4. The y-intercept is 4.

11
Find the slope and y-intercept of the line y = 5x - 7. Example 2 The slope is 5. The y-intercept is -7.

12
Practice 1)y = x + 3 2) y = -4x – 7 3) y = 3x - 9 Find the slope and y-intercept of each line.

13
Find the slope and y-intercept of the line 3x + 4y = 12. Example 3 3x + 4y = 12solve for y -3x 4y = 12 – 3x 44 slopey-intercept= 3

14
Practice 1)y = -x - 3 Find the slope and y-intercept of each line. 2) 8x + 2y = 10 3) 3y – 6x = 12

15
Homework p.326 #1-10,19-27 odds

16
7.5.2 Equations and Slope 7.5.2 Equations and Slope Objectives: To graph lines using the slope-intercept equation

17
Graph y = 3x + 2. Example 1 -8-6-4 -2 2 42 68 4 6 -4 -6 -8 -2 8 What is the y- intercept? What is the slope of this line? b = 2

18
Graph Example 2 -8-6-4 -2 2 42 68 4 6 -4 -6 -8 -2 8 What is the y- intercept? What is the slope of this line? b = -3

19
Practice 1)y = 3x - 5 Graph each line. 2) y = -2x + 4 3)

20
Graph 3x + 4y = 12. Example 3 3x + 4y = 12solve for y -3x 4y = -3x + 12 44

21
Graph 3x + 4y = 12. Example 3 slope y-intercept -8-6-4 -2 2 42 68 4 6 -4 -6 -8 -2 8

22
Practice 1)7x + 2y = 4 Graph each line. 2) 5y – 10 = 4x

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google