Lines and Equations

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The picture below has a VIDEO to EXPLAIN 





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The picture below has a VIDEO to EXPLAIN 






The picture below has a VIDEO to EXPLAIN



USING THE EQUATION
in a SCIENCE SITUATION

Instead of memorizing the formulas for Centigrade to Fehrenheit ----
why not use the fact that there exists
a linear relationship.
By forming the ordered pairs for
the Freezing and Boiling
Temperatures for WATER we get:
(0 , 32) and (100 , 212)
OR
(32 , 0 ) and (212 , 100)
Depending on which pair you use,





the slope will be either 9/5 or 5/9



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