<PRE><B>Question 741267</B>
Russ and Holly from St. Croix say their weather is very regular. It varies from a low of 62 F at 3:00 am to a high of 78 F at 3:00 pm. Find a formula that gives their temperature in terms of hours after 3:00 am
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you have two points: (0,62) and (12,78)
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slope = (78-62)/(12-0) = 16/12 = 4/3
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Form: y = mx + b
Solve for &quot;b&quot;:
62 = (4/3)0 + b
b = 62
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Equation:
y = (4/3)x + 62
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Cheers,
Stan H.</PRE>