Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Absolute Value

What is a number's ABSOLUTE VALUE? The absolute value of a number is it's distance from zero, (when plotted on a number line.)
When solving an absolute value equation, first you must always ISOLATE the absolute value.
An absolute value expression must always be a non-negative number. It can equal zero, or any positive.
How do you ISOLATE an absolute value? Move all other terms to the other side of the equal, or inequality sign.
Absolute Value Equation Form |X| = a |X| represents an expression containing a variable, (in this case equal to a.) Is a is a positive number, then |X| = a is equivalent to X = a and X = -a. If a = 0, then solve so that X = 0.
Absolute Value Equation Form |X| = |Y| |X| and |Y| are two separate expressions both containing a variable. X = Y and X = -Y
Absolute Value Inequality Form |X| < a In a Less Than Inequality you use a COMPOUND INEQUALITY to solve. -a < X < a When solving, all three terms must be treated equally.
Absolute Value Inequality Form |X| > a IN a GREATER THAN Inequality you set up TWO DISJOINT LINEAR INEQUALITIES to solve. X < -a or X > a
What must you do to the inequality symbol(s) when multiplying or dividing both sides of an inequality by a NEGATIVE number? REVERSE the inequality symbol.
Absolute Value Inequality Form |x| < a or |x| > a |x| represents a variable that is "a" distance from zero.
Created by: CoryBrydges