What is the average rate of change for the function LaTeX: f\left(x\right)\:=\:x\:^2\:+\:4x\:+ \:5\:f ( x ) = x 2 + 4 x + 5 on the interval 1< x < 3?

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this

The answer is (a) 12-2(-1)(6)2(6)=12