PSSA Math Test Preparation - MathHelp.com - By MathHelp.com
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| 00:0-1 | The following is a selected video from your teacher.com where | |
| 00:03 | you can browse over 450 complete math lessons with example | |
| 00:07 | videos , interactive practice problems , self tests and more | |
| 00:11 | . Try a complete lesson today at your teacher dot | |
| 00:14 | com . So let's say we're asked to find the | |
| 00:19 | slope of the line that passes through the points 5 | |
| 00:22 | , 4 and 86 . Remember we don't need to | |
| 00:27 | graph the line . All we have to do is | |
| 00:29 | use our slope formula M equals y tu minus Y | |
| 00:34 | one over X two minus x one . In other | |
| 00:38 | words , we take our second y minus our first | |
| 00:42 | Y , Which in this case is 6 -4 over | |
| 00:52 | our second x minus our first X . Which in | |
| 00:56 | this case is eight minus five . So 6 -4/8 | |
| 01:06 | -5 simplifies to two over three . So the slope | |
| 01:12 | of this line is two thirds . |
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PSSA Math Test Preparation - MathHelp.com is a free educational video by MathHelp.com.
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