Q1: Let f (x) = 0.2x

^{2}– 5x +7. Find the x-coordinate of the vertex. Round your answer to 2 decimal places.Q2: Does f(x) = -3x

^{2}+ x – 1 have a maximum value or a minimum value?Q3: Find the range of f(x) = x^{2} – 6x + 3.

Q4: Suppose that an object is projected in such a way that its height above the ground in feet after t seconds is given by s(t) = -8t

^{2}+ 24t + 7. Find the maximum height of the object.Q5: Consider the function f(x) = (x +3)

^{3}(x + 2)^{6}. Determine whether the graph touches the x-axis or crosses the x-axis at x = -3 and x = -2.Q6: Find the x- and y-intercepts of f(x) = 2(x + 1)(x + 2)(x – 3).