Single Answer MCQ
Q-00051631
For which function is the graph always above the x-axis?
1
f(x) = x^2
2
f(x) = -x^2
3
f(x) = tan x
4
f(x) = -|x|
Answer and Solution
Answer
A. f(x) = x^2
Solution:
The function f(x) = x^2 produces non-negative values for all real x, thus its graph is always above the x-axis, making option 1 correct.
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