Question an-obj
An object is kicked from a platform. The equation represents this situation, where is the height of the object above the ground, in meters, seconds after it is kicked. Which number represents the height, in meters, from which the object was kicked?
An object is kicked from a platform. The equation h = - 4.9 t 2 +
Medium-difficulty · SAT Math · Nonlinear Functions — Quadratic graphs and vertex form. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice D is correct. It’s given that the equation represents this situation, where is the height, in meters, of the object seconds after it is kicked. It follows that the height, in meters, from which the object was kicked is the value of when . Substituting for in the equation yields , or . Therefore, the object was kicked from a height of meters.
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
More Nonlinear Functions practice questions
- f x = 4 x 2 - 50 x + 126 The given equation
- The function p is defined by p n = 7 n 3 . What
- The parabola opens downward. The vertex is at point (4 comma 9). The parabola
- f x = x + 7 2 + 4 The function f is defined
- The function f w = 6 w 2 gives the area of a rectangle,
- The exponential function g is defined by g x = 19 · a x
- In quadrant 3, the curve rises to its maximum at point (0 comma negative
- q ( x ) = 32 ( 2 x ) Which table gives three
Browse all Passport to Advanced Math practice questions or return to the full SAT question bank.