Two people in different towns drive to meet each other. The towns are 300 miles apart.
• The first person travels at a constant rate of 70 miles per hour.
• The second person travels at a constant rate of 50 miles per hour.
Both people leave at the same time.
.
What distance has the first person driven when they meet?

A-120 miles
B-125 miles
с-175 miles
D-180 miles

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.

7

step-by-step explanation: