Download presentation

Presentation is loading. Please wait.

Published byDiana Combs Modified over 3 years ago

1
Lines, Lines, Lines!!! ~ Horizontal Lines Vertical Lines

2
**What is a Horizontal Line?**

A Horizontal Line is a line that goes straight from left to right (or right to left) parallel to the x-axis of the coordinate plane. All of the points on the line will have the same y-coordinates.

3
What’s a Vertical Line? A Vertical Line is a line that goes straight up and down Parallel to the y-axis of the coordinate plane. All of the points on the line will have the same x-coordinates.

4
**The Possibilities for a Line’s Slope:**

Positive Slope x y m > 0 Line rises from left to right. Negative Slope x y m < 0 Line falls from left to right.

5
**The Possibilities for a Line’s Slope:**

m is undefined Undefined Slope x y Line is vertical. Zero Slope x y m = 0 Line is horizontal. m = 2

6
**Equations Horizontal and Vertical Lines**

Horizontal line: y = b Vertical line: x = a Where b, a are Constants x = 2 Graph: x = 2 and y = -1 x y x y y = -1 Vertical line Horizontal line

7
**Equations Horizontal and Vertical Lines**

Let’s look at a line with a y-intercept of 4, a slope m = 0, and let (x, 4) be any point on the Horizontal line. Y-axis X-axis (0,4) (x,4)

8
**Equations Horizontal and Vertical Lines**

Let’s look at a line with no y-intercept b, an x-intercept 3, an undefined slope m, and let (3, y) be any point on the vertical line. Y-axis X-axis (3,0) (3, y)

9
**The Equation for Horizontal Lines**

Therefore… The Equation for a Horizontal line going through the points (a, b), (7, b), (-4, b), (z, b), (3, b), (-10, b), ect is… y = b

10
**The Equation for Vertical Lines**

Therefore… The Equation for a Vertical line going through the points (a, 2), (a, a), (a, 5), (a, 7), (a, z), (a, -10), ect is… x = a

11
**Horizontal Line Practice**

Find the equation for the lines passing through the following points. 1. (3, 2) and ( 8, 2) 2. (-5, 4) and ( 10, 4) 3. (1, -2) and ( 7, -2) 4. (4, 3) and ( -2, 3)

12
**Vertical Line Practice**

Find the equation for the lines passing through the following points. 1. (3, 5) and ( 3, -2) 2. (-5, 1) and ( -5, -1) 3. (1, -6) and ( 1, 8) 4. (4,3) and ( 4, -4)

13
Student Activity You will now receive a worksheet. Turn the worksheet in when completed.

14
**Do Not Disturb Work In Progress**

Similar presentations

OK

The Slope of a Line 4.4 Objective 1 – Find the slope of a line using two of its points Objective 2 – Interpret slope as a rate of change in real-life situations.

The Slope of a Line 4.4 Objective 1 – Find the slope of a line using two of its points Objective 2 – Interpret slope as a rate of change in real-life situations.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Musculoskeletal system anatomy and physiology ppt on cells Surface conduction electron emitter display ppt online Ppt on atomic structure and chemical bonding Ppt on classical economics today Ppt on obesity management systems Ppt on channels of distribution of a product Ppt on blood stain pattern analysis crime scene Ppt on marketing management by philip kotler marketing Ppt on green building technology Ppt on review of literature definition