Jim's internet company is planning on raising their prices by 4%. jim's service currently cost $40, what will the plan cost after the 4% increase?

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

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.