Evaluate the expression when x=10, y=−2,x=10, y=−2, and z=−5z=−5. |xz| |-y| me asap

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