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The number of miles driven is proportional to the gallons of gasoline used. The graph shows this relationship.

What is the unit rate for miles driven per gallon?


The Number Of Miles Driven Is Proportional To The Gallons Of Gasoline Used The Graph Shows This Relationship What Is The Unit Rate For Miles Driven Per Gallon class=

Sagot :

7 mi/gal
From your graph you can see that the relationship of your problem is:
y=7x the number 7 is the slope of your line (=inclination) and tells you that for every gallon you can make 7 miles. This is your unit rate.
You can get to this number observing your two points P2(5,35) and P1(1,7); you can evaluate the unit rate by doing:
Δy/Δx=(35-7)/(5-1)=28/4=7