Download presentation

Presentation is loading. Please wait.

Published byNathaniel Maldonado Modified over 4 years ago

1
9.3 Equations as Relations CORD Math Mrs. Spitz Fall 2006

2
Objectives: Solve linear equations for a specific variable, and Solve linear equations for a given domain Whats linear?

3
Assignment Pgs. 367 -368 #4 – 41 all

4
Definition of the solution of an equation in two variables If a true statement results when the numbers in an ordered pair are substituted into an equation in two variables, then the ordered pair is a solution of the equation

5
More Since the solutions of an equation in two variables are ordered pairs, such an equation describes a relation. The set of values of x is the domain of the relation. The set of corresponding values of y is the range of the relation.

6
Ex. 1: Solve y = 2x +3 if the domain is {-5, -3, -1, 0, 1, 3, 5, 7, 9} x2x + 3y(x, y) -52(-5) + 3 = -10 + 3 = -7-7(-5, -7) -32(-3) +3 = -6 + 3 = -3-3(-3, -3) 2(-1) + 3 = -2 + 3 = 11(-1, 1) 02(0) + 3 = 0 + 3 = 33(0, 3) 12(1) + 3 = 2 + 3 = 55(1, 5) 32(3) + 3 = 6 + 3 = 99(3, 9) 52(5) + 3 = 10 + 3 = 1313(5, 13) 72(7) + 3 = 14 + 3 = 1717(7, 17) 92(9) + 3 = 18 + 3 = 2121(9, 21) The solution set is (x, y) column

7
Ex. 2: Solve 3y + 6x = 12 if the domain is {-4, -3, -2, 2, 3, 4} x-2x + 4y(x, y) -4-2(-4) + 4 = 8 + 4 = 1212(-4, 12) -3-2(-3) +4 = 6 + 4 = 1010(-3, 10) -2-2(-2) + 4 = 4 + 4 = 88(-2, 8) 2-2(2) + 4 = -4 + 4 = 00(2, 0) 3-2(3) + 4 = -6 + 4 = -2-2(3, -2) 4-2(4) + 4 = -8 + 4 = -4-4(4, -4) The solution set is (x, y) column First solve for y: 3y + 6x = 12 3y = -6x + 12 y = -2x + 4

8
Homework problems #4,5 are table of values to complete #6-8/13-15 are multiple choice. #9-12/16-23 are solve for the variable indicated #24-41 are given that domain is, then solve each equation for the range. You need a ruler to make tables or be careful making them.

Similar presentations

OK

Around the World AdditionSubtraction MultiplicationDivision AdditionSubtraction MultiplicationDivision.

Around the World AdditionSubtraction MultiplicationDivision AdditionSubtraction MultiplicationDivision.

© 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

Oral cavity anatomy and physiology ppt on cells Ppt on biodiversity and evolution Ppt on total internal reflection experiment Ppt on computer graphics applications Ppt on employee branding Download ppt on solar energy Ppt on domestic robots for sale Ppt on fault analysis in power system Ppt on asp dot net project By appt only movie john