Barry records the height of a balloon from the ground from 2 seconds after he left it go for 12 seconds. the function h(t)=|t+2|-1 models the height h over t seconds. a: What was the balloon’s height from the ground when Barry started recording the height ?
b: what was the balloons height from the ground when barry stopped recording the height
c: predict how high the balloon was when he let it go, even though he did not record the height.
d: is an absolute value function needed to model the height of the balloon from the ground?

the answer is su.k.my? ? co.kc

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.