algebra
posted by jay .
You are trying to compare the Farenheit and Celcius scales and you have two examples; Temperatur A is 50 degrees Celcius and 122 Farenheit. Temperature B is 100 degrees Celcius and 212 degrees Farenheit. What graph models the relationship between Farengeit and Celcius scales? What is an equation of the line in slope intercept form.
I know you cant see the graphs but maybe be able to explain a little.

algebra 
Reiny
I suggest the following:
draw a horizontal axis, called C , for Celsius
draw a vertical axis , called F for Fahrenheit, (note the correct spelling)
label one point as A(50, 122) and another B((100,212)
join with a straight line.
pick any point P(C,F)
slope of PA = slope BA
(F122)/(C50) = (212122)/(10050)
(F122)/(C50) = 90/50 = 9/5
crossmultiply
5F  610 = 9C  450
5F = 9C + 160
F = (9/5)C + 32 or rearrange to get C = .... 
algebra 
jay
I believe it would be y=9/5+32 if I made the graph right. Am I close?

algebra 
jay
Not understanding how to graph my answer

algebra 
beg
your right
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