9.6973 will be your answer
Answer:
(a). Assuming consumption is only dependent upon miles driven, the function is defined as :
Amount of gas left after driving x miles :
(b). The y-intercept is obviously 10. This represents the initial gas in the tank, 10 gallons.
(c). The x-intercept is the solution to
The x-intercept is 250. It represents the "distance taken by car to empty the tank".
2x=y where 2 is dollars per tomatoe, x is amount of pounds of tomatoes, and y is amount of money spent in total. say you got 3 pounds of tomatoes; the equation would be 2(3)=y. y=6. Hope I helped!



so if you notice yours

now.. normally the function

has a D value of 0, or no vertical shift, and the amplitude and the period simply make the wave taller and thinner, but the midline is still the x-axis
now, with D = 6.1, that moves the midline up vertically that much
now.. the period, well, B = 5/3, normal period of cosine is

so, the new period will be

notice the picture below
the vertical shift by the D component, or 6.1, moved the midline to y = 6.1 :)