The position of a ball after it is thrown is modeled by the
function f(x) = −2(x − 1)2 + 7 in vertex form, where x is
the height, in feet, above the ground and y is the
horizontal distance, in feet, of the ball when it lands.
a. Write the function in standard form.
b. What is the height of the ball when it is thrown?
c. What is the horizontal distance from the point the ball was thrown from to
the highest point that the ball reached?