Total Points: [00 Unit III Test 9. Below is a graph ofa parabolic function, f(x), answer the questions below. a. State the vertex as an (x, y) ordered pair. (2 points) b. Find the vertex form of this parabolic function. (4 points) [0. Find the algebraic expression for the difference quotient for f(x) = 31:2 + 2x 5. Note: +h the difference quotient for the function f(x) is w. (6 points) I l. Solve for x given: 2|3x + 1| > 4. Express your answer in interval notation. {5 points)