Last week Rachel used 42.5 pounds of sugar in her bakery. This week she used 26 pounds of sugar. What is the percent change of the amount of sugar used?

isi

step-by-step explanation:

use that smart brain

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.

i think it might be a but you might want a second opinion