Download presentation

Presentation is loading. Please wait.

Published byBrianna McWilliams Modified over 4 years ago

1
**3.7 Equations of Lines in the Coordinate Plane**

The slope m of a line is the ratio `of the vertical change (rise) to the horizontal change (run) between any two points.

2
Find Slopes of Lines Find the slope of line a and line d.

3
**Slopes of Lines in Coordinate Planes**

Negative slope – falls from left to right. Positive slope – rises from left to right. Zero slope (slope of 0) – horizontal line Undefined slope – vertical line

4
**Forms of Linear Equations**

The slope intercept form of an equation of a nonvertical line is y = mx + b, where m is the slope and b is the y-intercept. The point-slope form of an equation of a nonvertical line is y – y1 = m (x – x1), where m is the slope and (x1 , y1) is a point on the line.

5
Graphing Lines What is the graph of Starting point (0 , 1)

6
**Graphing Lines What is the graph of y – 3 = -2 (x + 3)**

Starting point (-3 , 3)

7
**Writing Equations of Lines**

What is an equation of the line with the slope 3 and y – intercept -5? y = mx + b y = 3x – 5

8
**Writing Equations of Lines**

What is the equation of the line through point (-1 , 5) with slope 2? y – y1 = m (x – x1)

9
**Using Two Points to Write an Equation**

What is an equation of the line with points (-2 , -1) and (3 , 5)?

10
**Writing Equations of Horizontal and Vertical Lines**

What are the equations for the horizontal and vertical lines through (2 , 4)? y = 4 – horizontal line x = 2 – vertical line

11
More Practice!!!!! Homework – textbook p. 194 # 8 – 36 even.

Similar presentations

OK

Distance On a coordinate plane Finding the length of a line segment.

Distance On a coordinate plane Finding the length of a line segment.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on art and craft movement artists Ppt on trial and error factoring Ppt online compressor training Ppt on water cycle for class 9 Ppt on dc motor working Ppt on national education day images Ppt on event handling in javascript all objects Ppt on online banking system in java Ppt on social contract theory pdf Ppt on seven segment display diagram