Kevin works 3z hours each day from Monday to Friday. He works (4z - 7) on Saturday. Kevin does not work on Sunday. Find the number of hours Kevin
works in one week in terms of z. *Write as an algebraic expression and explain*

351°f

step-by-step explanation:

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.