Projectile motion. The height, y metres, of a ball
after leaving a ball launcher can be modelled by the
equation y=-0.04x²+0.44x + 1.5, where x is the
horizontal distance travelled by the ball in metres.
Bernard is able to hit the ball if it is not more than
range of values
2.62 m above the ground. Find the
of x for which Bernard can hit the ball.