Download presentation

Presentation is loading. Please wait.

1
**Warm Up… Solve each equation for y.**

y – 5 = 4x (2) y + 2x = (3) 2y + 6 = -8x Calculate the slope given the two points. (4) (-4, 4) and (2, -5) (5) (0, -1) and (1, -6)

2
**#6.2 - Graphing Linear Equations**

In Slope-Intercept Form Objective: SWBAT graph linear equations

3
**A linear equation graph will always create a line.**

Linear equations are in the form y = mx + b or can be rewritten into the form y = mx + b. In this section, instead of making a table, evaluating y for each x, plotting the points and making a line, we will use The Slope-Intercept Form of the equation to graph the line.

4
**Notice that these equations are all solved for y.**

These equations are all in Slope-Intercept Form: Notice that these equations are all solved for y.

5
**y = mx + b Formula for Slope – Intercept Form**

‘b’ is the y-intercept (the point where the graph crosses the y – axis) ‘m’ is the slope

6
**Just by looking at an equation in this form, we can draw the line (no tables).**

The constant is the y-intercept. The coefficient is the slope. Constant = 1, y-intercept = 1. Coefficient = 2, slope = 2. Constant = -4, y-intercept = -4. Coefficient = -1, slope = -1. Constant = -2, y-intercept = -2. Coefficient = 3/2, slope = 3/2.

7
right 1 up 2 right 1 up 2

8
down 1 down 1 right 1 right 1

9
right 2 up 3 right 2 up 3

10
y = x

11
y = -3 x = 2

12
**Sometimes we must solve the equation for y before we can graph it.**

The constant, b = 3 is the y-intercept. The coefficient, m = -2 is the slope.

Similar presentations

OK

Slope-Intercept and Point-Slope Forms of a Linear Equation

Slope-Intercept and Point-Slope Forms of a Linear Equation

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on adivasis of india Ppt on reflection of sound Ppt on amplitude shift keying Ppt on natural and artificial satellites distance Ppt on healthy food and junk food Ppt on computer science department portal Ppt on individual taxation in india Free ppt on mobile number portability faq Ppt on swami vivekananda death Ppt on aircraft emergencies youtube