SAT question d71f6dbf (Nonlinear Functions)

Question

The height, in feet, of an object x seconds after it is thrown straight up in the air can be modeled by the function h(x) = -16 x^2 + 20 x + 5 . Based on the model, which of the following statements best interprets the equation h(1.4) = 1.64 ?

College Board · Accepted Answer

The correct answer is A. Choice A is correct. The value 1.4 is the value of x , which represents the number of seconds after the object was thrown straight up in the air. When the function h is evaluated for x = 1.4 , the function has a value of 1.64 , which is the height, in feet, of the object.

CookSAT · Answer

Note: h(1.4) means the object’s height 1.4 seconds after it is thrown, and the calculator evaluates it as 1.64 feet.

Explanation

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Why the other choices are wrong

SAT Question d71f6dbf: Nonlinear Functions answer and explanation with Desmos solution

Explanation

Enter in Desmos:

Why the other choices are wrong