Download presentation

Presentation is loading. Please wait.

Published byMegan Kent Modified over 3 years ago

1
**Equations as Relations Lesson for Glencoe Algebra I Math**

By: Cathy Miller Bartlett High School Lesson for Glencoe Algebra I Math Section 4-4 Algebra I Glencoe Mathematics 2004 The McGraw Hill Companies Inc.

2
**Ways to write a relation**

Set of ordered pairs Table Mapping Graph Equation in two variables

3
New Vocabulary Equation in Two Variables – Equations with 2 different variables. Solution to Equation in Two Variables – any point that makes a true statement when you substitute the x and y values into the equation.

4
**Solve Using a Replacement Set**

Replacement set = a set of possible solutions. Substitute the points to find the true solutions… these are the ones that make the equation true. Solution set = the set of true solutions.

5
**Solve -3x+y=7 if the replacement set is {(-5,0),(-3,-2),(2,13),(4,19)}**

-3(-5)+(0)=7 15 = 7 -3(-3)+(-2)=7 7=7

6
**Solve -3x+y=7 if the replacement set is {(-5,0),(-3,-2),(2,13),(4,19)}**

-3(2)+(13)=7 7=7 -3(4)+(19)=7 7=7

7
**Solve y=7+3x if the replacement set is {(-5,0),(-3,-2),(2,13),(4,19)}**

Solution set = {(-3,-2),(2,13),(4,19)}

8
**Solve Using a Given Domain**

Domain = the x’s for your solution setlthat you can use Substitute the x’s to find their y’s. Solution set = the set (x,y)’s

9
**Solve 9x+3y=15 if the domain is { 0,1,2,3}**

First…solve the equation for y

10
**Solve 9x+3y=15 if the domain is { 0,1,2,3}**

y=-3x+5 y y=-3(0)+5 = 5 1 y=-3(1)+5 = 2

11
**x y y=-3x+5 y=-3(0)+5 = 5 1 y=-3(1)+5 = 2 2 y=-3(2)+5 = -1 3 y=-3(3)+5**

Solve 9x+3y=15 if D={ 0,1,2,3} x y y=-3x+5 y=-3(0)+5 = 5 1 y=-3(1)+5 = 2 2 y=-3(2)+5 = -1 3 y=-3(3)+5 = -4 Sol. Set={(0,5),(1,2),(2,-1),(3,-4)|

Similar presentations

OK

Do Now 10/26/10 In your notebook, explain how you know a function is a function. Then answer if the following three tables are functions or not. x 02448.

Do Now 10/26/10 In your notebook, explain how you know a function is a function. Then answer if the following three tables are functions or not. x 02448.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on bolivia water war Ppt on intelligent manufacturing pdf Ppt on the road not taken by frost Ppt on solar energy devices Ppt on emotional intelligence for students Ppt on even and odd functions Ppt on event handling in javascript 17%5 Ppt on data handling for class 7 cbse Download ppt on tsunami warning system Ppt on ideal gas law formula