Gianna is paid $90 for 5 hours of work.
a. at this rate, how much would gianna make for 8 hours of work?
b. at this rate, how long would gianna have to work to make $60?
use a ratio table to solve.

it would be:

c.parallelogram.

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.