3, 6, 9, 12, 15
I did what you asked
I think it’s positive. As it gets heavier, the cost has a positive slope, or increases. I’m not absolutely sure though
The angle of elevation from the hiker to the park ranger is the same as the angle of depression from the ranger to the hiker, 29°.
The tangent function of an angle is the ratio of the opposite side (500') to the adjacent side (x) in the right triangle shown. That is
tan(29°) = 500' / x
Multiplying the equation by x/tan(29°) gives
x = 500' / tan(29°)
x ≈ 500' / 0.5543
x ≈ 902 ft
-3x^2 +10x
All you have to do is combine like terms!
