Chris has $100 in his savings account and he adds $20 a month to the account. The total amount can be represented by the linear function T= 20x + 100. His goal is to have a total of $300 in four more months. What should he change in the function to reach this goal? A) Change the amount he adds each month to $50. B) Change the amount he adds each month to $40. Change the y-intercept of the linear function to $20. D) Change the y-intercept of the linear function to $50.

Write the equation that best represents the linear function described below:

A minivan was purchased for $32,000. If the value of the minivan depreciates by $1,700 per year, find a linear function that models the value V of the car after t years. Use the function and find the value of the car after 5 years. (A) V(t) = -1,700t + 32,000; value after 5 years = $23,500 B V(t) = -1,700 + 32,000; value after 5 years = $30,300 (C) V(t) = 1,700 + 32,000; value after 5 years = $33,700 D V(t) = 1,700t + 32,000; value after 5 years = $40,500

The equation y=3x-2 describes a linear function. How does it compare to the linear function y=3x+2?