Slope intercept from 3
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Slope-Intercept From 3 PowerPoint PPT Presentation


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Slope-Intercept From 3. Goal. Given a table of data , find an equation of the line in the y= mx+b form. . Step 1. Write original equation: y= mx+b. Step 2. Find the slope. Pick two points and plug them into . Step 3. Plug the slope in for m into y= mx+b. Step 4.

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Slope-Intercept From 3

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Slope-Intercept From3


Goal

  • Given a table of data, find an equation of the line in the y=mx+b form.


Step 1

Write original equation: y=mx+b


Step 2

  • Find the slope. Pick two points and plug them into .


Step 3

  • Plug the slope in for m into y=mx+b


Step 4

  • Check to see if x=0 is a point. If so, that y-value is the y intercept. Plug that number in for b.


Step 5

  • Of x=0 is NOT a point, then we must find b. Pick any point from the list and plug it in for x and y. Then solve for b.

  • Plug b into final equation.


Example 1


You try!


Example 2


You try


Homework

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