Advanced MathEasyDistance fallen from a quadratic model
Advanced Math practice question
An object dropped from a tower falls 5t² metres in the first t seconds. How many metres does it fall in the first 2 seconds?
Answer: 20
5(2)² = 5(4) = 20.
Common wrong answers
- If you answered 10
- 10 is 5 × 2, forgetting to square.
- If you answered 40
- 40 doubles 20 for no reason.
- If you answered 100
- 100 is (5 × 2)², squaring the 5 as well.
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 ?
Not affiliated with the College Board. SAT is a trademark of the College Board.