In the data set below, what is the mean absolute deviation? 8 8 9 1 9 7
If the answer is a decimal, round it to the nearest tenth.
mean absolute deviation (MAD):

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function