Your uncle purchases a $25,000 car this year. The car depreciates in value by 20% per year. a) Write an exponential equation for the value of the car.

b) Use your equation to find the value of the car in 10 years.

c) When will the car be worth $10,000? Solve an equation with logarithms and show your work.

8doors on the second floor

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

The answer might be a