Download presentation

Presentation is loading. Please wait.

Published byCorey Letitia Patrick Modified over 4 years ago

1
Slope Intercept Form

2
Slope Intercept Form of an equation gives you a quick way to graph an equation

3
Slope Intercept Form The slope-intercept form of a linear equation is y = mx + b Y-intercept Slope

4
What are the slope and y intercept? y = 3x - 5 Is the above equation in slope intercept form?How can we put it in slope intercept form? y = 3x – 5 = y = 3x + (-5) Can we now determine the slope? ________ Can we determine the y –intercept? ________ Can we now determine the slope? 3 Can we determine the y –intercept? ________ Can we now determine the slope? 3 Can we determine the y –intercept? -5 y = 3x + (-5) y = mx + b

5
Practice : Find the slope & y-intercept y = -2x + 1 y = mx + b (Slope) m = -2 (y-intercept) b = 1

6
Practice : Find the slope & y-intercept y = (7/6)x – (3/4) y = (7/6)x + (-3/4) y = mx + b (Slope) m = (7/6) (y-intercept) b = (-3/4)

7
Practice : Find the slope & y-intercept y = (-4/5)x y = mx + b (Slope) m = (-4/5) (y-intercept) b = 0

8
Writing an Equation Write an equation of the line…… Slope = (-3) Y-intercept = 4 y = mx + b Slope = (-3) Y-intercept = 4 Substitute y = (-3)x + 4

9
Writing an Equation Write an equation of the line…… Slope = (3/8) Y-intercept = 6 y = mx + b Slope = (3/8) Y-intercept = 6 Substitute y = (3/8)x + 6

10
Can I Develop An Equation? x y 1 3 5 7 9 9 7 5 3 1 What do I need to create an equation of the line? Slope = Y-intercept = Slope = -1 Y-intercept = 8 y = x + 8

11
Can I Develop An Equation? Practice x y 1 3 5 7 9 9 7 5 3 1 Step 1: Find the slope Pick two points on the line. (6,2) and (9,1) 2-1 / 6-9 = - 1 / 3 Step 2: Find y-intercept Step 3: Substitute y = (-1/3)x + 4

12
Graphing Equations Graph y = 3x - 1 What information can we pull from the above equation? Can you use that information to graph the equation? Try it!! x y 1 3 5 7 9 9 7 5 3 1

13
Graphing Equations Graph y = (3/2)x + 1 x y 1 3 5 7 9 9 7 5 3 1

14
Questions?

Similar presentations

© 2020 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