by: Becka Matthews Absolute Value Equations SO... What is absolute value?? - the distance between a number and zero on a number line. Absolute Value is... - absolute value is ALWAYS a positive

number this is how

absolute value

is written This would be written as... l-3l = 3 l3l = 3 This would be written as... This is absolute value shown

on a number line... Now for:

Absolute Value Equations! -Make sure your absolute value expression is by itself! Step 1: -Check to see if your solution is a negative.

Step 2: -if you have a negative answer...

STOP and write no solution! -Created 2 "cases" Step 3: Rewrite the equation, without absolute value bars, twice.

One should have a positive answer and one should have a negative answer. -Solve each case like a normal equation. Step 4:

-write your answers from least to greatest in curly brackets...

Step 5: Here's an example! Lets try some... 2|n-7|=20 1:

|n-7|=10 case 1: case 2: n-7=10 n-7=-10 n=17 n=-3 {-3, 17} |2t-9|+ 17= 5

2: |2t-9|=-12

no solution! THE END!

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# Absolute Value Equations

A prezi on Absolute Value Equations for my math prject.

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