Avehicle travels 250 feet every three seconds find the value of the ratio the unit rate and the constant of proportionality how are they related?

to find the unit rate/constant of proportionality , you'd have to dive 250 by three. and they are related because they are the same thing.

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.