F(x) = -6(1.02)^x has a y-intercept at f(x) = -6(1.02)^0
f(x) = -6(1)
f(x) = -6
f(x) has a y-intercept at (0, -6)
g(x) has a y-intercept at (0, -3)
Therefore, the y-intercept of f(x) is equal to 2 times the y-intercept of g(x).
<em>g </em>= gallons.
50 ÷ 4 = g ; which this would then show us that if we were to divide 50 by 4, this would then give us a total of 12.5 which this would show us that would be the amount that he has putted in his truck.

<h3>First part of the problem:</h3><h3>-y - 4 = 4x</h3><h3> + 4 + 4</h3><h3>-y + 0 = 4x + 4</h3><h3> -y = 4x + 4</h3><h3 />
Hope this helps!
That he is keeping track who he owes money to and when he has to do it