Advanced MathEasyStarting value of a quadratic height model
Advanced Math practice question
A ball's height, in metres, t seconds after it is dropped is given by h(t) = 20 − 5t². What is the ball's height at t = 0?
Answer: 20
h(0) = 20 − 5(0) = 20.
Common wrong answers
- If you answered 0
- 0 is h(2), when the ball lands.
- If you answered 5
- 5 is the coefficient of t².
- If you answered 15
- 15 is h(1).
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