warm up l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Warm Up PowerPoint Presentation
Download Presentation
Warm Up

Loading in 2 Seconds...

play fullscreen
1 / 29

Warm Up - PowerPoint PPT Presentation


  • 158 Views
  • Uploaded on

Warm Up. 8r + 4 = 10 + 2r 28 – 0.3y = 0.7y – 12 8x + 6 – 9x = 2 – x – 15

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Warm Up' - nita


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
warm up
Warm Up
  • 8r + 4 = 10 + 2r
  • 28 – 0.3y = 0.7y – 12
  • 8x + 6 – 9x = 2 – x – 15
  • Jon and Sara are planting tulip bulbs. Jon has planted 60 bulbs and is planting at a rate of 44 bulbs per hour. Sarah has planted 96 bulbs and is planting at a rate of 32 bulbs per hour. In how many hours will Jon and Sara have planted the same number of bulbs? How many bulbs will that be?
slide3

In a game show, a contestant guesses the price of an item and wins a prize if his or her guess does not differ from the actual price by more than $5. The actual price is $48. What guesses will win a prize?

what is absolute value
What is absolute value?

Absolute value represents a distance from 0. Because distance can be in the positive or negative direction from 0, there can be as many as two possible answers for an absolute-value equation.

slide12

Absolute value can never be 0. Therefore, there is no solution to the equation or

any absolute value equation that equals a negative number.

most absolute value equations will have two solutions
Most absolute value equations will have two solutions.

Think about the equation:

What can x + 4 equal?

(It can equal 13 or -13)

most absolute value equations will have two solutions14
Most absolute value equations will have two solutions.

Therefore, we must set up two cases and solve each case to get two solutions.

case 1 case 2
Case 1 Case 2

X + 4 = 13 x + 4 = - 13

steps to solving absolute value equations
Steps to Solving Absolute Value Equations
  • Isolate the absolute value expression. (Using Inverse Operations)
  • Rewrite the equation as two cases.
  • Solve for the variable in both equations.
solution sets
Solution Sets { }

Solution sets are efficient when an equation has more than one solution. The solution set should be written with both solutions inside of the { }