The graph of a function fis shown below. Use the graph of the function to find its average rate of change from x=-3 to x=1.
Simplify your answer as much as possible.

Can someone me do math because i am having a breakdown rn because i don’t get it

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Simplify the expression below -3(10x+4y)+6(6x-2y)