What is the common difference
of the following numbers ?
1.8,-0.8,-3.4,-6.0

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.

236 cm 16 time 12 = 192

6 times 7 = 42

192+42

did u ever get the answers? i need