The graph relates the distance y (in miles) traveled to the amount of gasoline x (in gallons) added to the tanks of a car. 1.) is the relationship proportional? explain
2.) write an equation of the line. interpret the slope.
3.) how far can the vehicle travel on 14 gallons of gas?

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet