Question

2p The height of a ball Doreen tossed into the air can be modeled by the function h(x)= -4.9x^2 +6x + 5, where x is the time elapsed in seconds, and h(x) is the height in meters. The number 5 in the function represents O (1) the initial height of the ball (2) the time at which the ball reaches the ground O (3) the time at which the ball was at its highest point O (4) the maximum height the ball attained when thrown in the air

Answer 1

(1) the initial height of the ball

Step-by-step explanation:

The initial height of the ball can be found by putting x = 0 into the equation given. This gives

`\begin{gathered} h(0)=-4.9(0)^2+6(0)+5 \\ h(0)=5. \end{gathered}`

Therefore, we conclude that 5 in the equation represents the initial height of the ball.