9. Karen has 5 yards of material. She needs 14 yard for each scarf she is making. How many scarves can she make?

None

Step-by-step explanation:

If she needs 14 yards for every scarf and she only has 5 yards she can’t make any scards

no scarves its would be impossible if she doesn't have enough material to make the scarf

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.