What's 9 – (–2)? I just need help its solving integers and im confused.

21

Step-by-step explanation:

9-(-12) = 9+12 = 21 ( product of two minus signs is plus)

its a little blurry tbh

step-by-step explanation:

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.