How can you represent the concept of having more than $2?
Sponsored Links
This presentation is the property of its rightful owner.
1 / 14

How can you represent the concept of having more than $2? PowerPoint PPT Presentation


  • 61 Views
  • Uploaded on
  • Presentation posted in: General

How can you represent the concept of having more than $2? . In this lesson you will learn to represent real-world scenarios involving inequalities with a number line.

Download Presentation

How can you represent the concept of having more than $2?

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


How can you represent the concept of having more than $2?


In this lesson you will learn to represent real-world scenarios involving inequalities with a number line.


A variable is a letter or symbol that represents an unknown number or set of numbers. For example, x or ★ could be used to represent unknown numbers.

An inequality has more than 1 solution.


represents:

An open circle

> greater than

< less than

represents:

A closed circle

≥greater than or equal to

≤ less than or equal to


The highlighted numbers are part of the solution set of the inequality.

x could equal 2.3, 5, 10, 13½, 30, 500…


Write an inequality and represent it on a number line.

Jessie needs to set the freezer temperature so the ice cubes do not melt. What temperature should the freezer be set at?

Let x = freezer temperature


Jessie needs to set the freezer temperature so the ice cubes do not melt.

At what temperatures would ice melt?

At what temperatures does water freeze?

x equals more than 1 number – inequality


Jessie needs to set the freezer temperature so the ice cubes do not melt. At what temperature should the freezer be set?

x has to be 32ºF or less!

Use ≤ or ≥ since it can equal 32ºF


Jessie needs to set the freezer temperature so the ice cubes do not melt. At what temperature should the freezer be set?

x ≤32

29

30

31

32

33


In this lesson you have learned to represent real-world scenarios involving inequalities with a number line.


Write an inequality and represent it on a number line.

  • To ride the Batman roller coaster you must be at least 54 inches. How tall can you be to ride the roller coaster?


  • Given an inequality, create an equivalent representation in word problem form.

  • 1. x > -5

  • 2. 7 < x

  • 3. 12 ≤ x

  • 4. x ≥-2


  • Inequalities can be represented with words, symbols, and number lines. Use a stack of inequality cards. For each of these inequalities, construct the other two equivalent representations.


Justin needs to earn a score of 80 on his next math test to earn a B for the semester. Which inequality shows the grades that will allow Justin to earn a B?

A

B

C

D


  • Login