Bella works at a shoe store. In addition to a fixed salary, she earns a commission for each pair of shoes that she sells. The table shows Bella’s total earnings , y (in dollars), from selling x pairs of shoes: Shoe Sales and Earnings Pairs Sold (x) Total Earnings (y) 1 95 2 110 3 125 Which equation best shows the relationship between x and y? y = x + 80 y = 15x + 95 y = 15x + 80 y = x + 95

y=15x+80

Step-by-step explanation:

Proof:

15(2)+80=110

15(1)+80=95

15(3)+80=125

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.

the answer would be  

a.

3: 1

step-by-step explanation: