The path of a particle is modeled by the function f(x) = - -x2+ 2x + 4, where (x) is the height (in feet) of the particle and x is the horizontal distance (in feet) from where the particle started 20 moving. (a) What is the maximum height (in ft) of the particle? (b) Which number determines the height at which the particle started moving? Does changing this value change the coordinates of the maximum height of the particle? Explain. O Yes, changing this value results in a vertical shift of the graph, so the maximum height changes. Yes, changing this value results in both a vertical and a horizontal shift of the graph, so the maximum height changes. No, changing this value results in a horizontal shift of the graph, so the maximum height does not change. O No, changing this value does not shift the graph, so the maximum height does not change. Need Help? Read It Submit