Question

A Go Cart is bought for $4200 and sold 5 years later for $1130. Assuming the function is linear, find the depreciation formula and the value of the Go Cart after 3 years.

Answer 1

were assuming it's linear, therefore the equation should look like:

y = mx + b

assuming it's linear also implies that the slope is constant for all values.

m = (y2 - y1)/(x2 - x1) = (1130 - 4200)/(5 - 0)

m = -614

in y = mx + b, b is the initial value of y, and y is really a function of x [f(x)], varying with x.

y = -614x + 4200 is the equation you now use, where y is the value of the go-cart for x years. (notice x = 0, gives 4200, which makes sense). plugging x = 3 gives you your answer for 3 years.

Answer 2

thank you

Answer 3

glad i could help :)