A diver jumps from the diving board and dives into the pool. The equation $h=-4.9t^2+9.8t+3$ represents this situation, where $h$ is the height of the diver from the surface of the pool, in meters, $t$ seconds after jumping from the board. Which number represents the height, in meters, from which the diver jumped?
Answer:
B
Explanation
The correct answer is Choice B.
Substitute $t=0$ into the given height equation to find the initial height from which is the height the diver jumped.
Choice A is incorrect and may result from algebraic mistakes.
Choices C and D are incorrect and may result from using a coefficient of the equation.
✨ Expert's Tip ✨
The maximum height of the diver can be found at the vertex of the graph since the graph is concave down.