Advanced MathEasyValue of a quadratic model at a point
Advanced Math practice question
The distance d, in metres, that a dropped stone falls in t seconds is modelled by d = 5t². How far does the stone fall in 2 seconds?
Answer: 20
5 × 2² = 20.
Common wrong answers
- If you answered 10
- 10 uses 5 × 2.
- If you answered 25
- 25 uses 5² instead of 2².
- If you answered 100
- 100 uses (5 × 2)².
More Advanced Math questions
- Easy
If f(x) = 3x − 7, what is the value of f(5)? - Easy
What are the solutions to x² − 9 = 0? - Easy
Which of the following expressions is equivalent to x² + 7x + 12 ? - Easy
The function g is defined by g(x) = x³ + 2x. What is the value of g(−2) ? - Easy
For x > 0, which of the following is equivalent to ∛(x⁵) ? - Easy
The function h is defined by h(x) = (x − 6)(x + 2). What is one value of x for which h(x) = 0 ?
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