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-60 Minutes (8.44) -40 (4,22) -20 Miles 2 6 8. what is the constant of proportionality?

Sagot :

You have the following points for the relation between minutes and miles respectively:

(4 , 22)

(8, 44)

In order to calculate the constant of porportionality use the formula:

m = (y2 - y1)/(x2 - x1)

where (x1,y1) and (x2,y2) are the given points:

m = (44 - 22)/(8 - 4)

m = 22/4

m = 5.5

Hence, the constant of proportionality is 5.5

THe meaning of the point (4 , 22) is:

4 means 4 miles and 22 means 22 minutes. That is, it has been traveled 4 miles in 22 minutes.