Kimberly has a credit card with a 19% APR and a balance of $4,350. With her current monthly payment, Kimberly will be able to pay off the credit card in a mere 16 months. But when Kimberly's car breaks down, she is forced to charge an additional $1,600 to her credit card. How much will Kimberly's minimum monthly payment increase if she still wants to pay off her credit card in 16 months? A. $100.00 b. $113.99 c. $309.90 d. $423.89

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.