Free SAT Practice Question

Question 1 of 1
ID: SAT-HA-10
Section: Math - Heart of Algebra
Topic: Functions
Difficulty level: Hard

Practice Mode: Single selected Question » Back to Overview

Which of the following is NOT true about the function $f(x)=20-\frac{1}{x}$? (Without calculator)

AFor $x>0$, the function is increasing

B$x=0$ will not lie in the domain on this function

CThe minimum value of the function is $-\infty$

DThe maximum value of the function is 20