SAT question 197bed38 (Nonlinear Functions)

Question

An object was launched upward from a platform. The graph shown models the height above ground, $y$ , in meters, of the object $x$ seconds after it was launched. For which of the following intervals of time was the height of the object increasing for the entire interval?

30

Difficulty:Easy

A

From $x = 0$ to $x = 2$

B

From $x = 0$ to $x = 4$

C

From $x = 2$ to $x = 3$

D

From $x = 3$ to $x = 4$

College Board · Accepted Answer

The correct answer is A. Choice A is correct. It's given that the variable y represents the height, in meters, of the object above the ground. The graph shows that the height of the object was increasing from x = 0 to x = 2 , and decreasing from x = 2 to x = 4 . Therefore, the height of the object was increasing for the entire interval of time from x = 0 to x = 2 .

CookSAT · Answer

Note: The graph shows the parabola rising from x=0 to the vertex at x=2, so the height increases over that entire interval.

Explanation

Enter in Desmos:

Why the other choices are wrong

SAT Question 197bed38: Nonlinear Functions answer and explanation with Desmos solution

Explanation

Enter in Desmos:

Why the other choices are wrong