Rational Functions

9000007709

Level: 
B
Identify a correct statement which concerns the function \(f(x) = -\frac{5} {x} - 3\).
None of the statements above is true.
The function \(f\) is bounded above.
The function \(f\) is an even function.
The function \(f\) is a decreasing function on \((0;\infty )\).
The function \(f\) is an odd function.

9000007707

Level: 
B
Identify a correct statement which concerns the function \(f(x) = 2 -\frac{1} {x}\).
None of the statements above is true.
The function \(f\) is bounded above.
The function \(f\) is an even function.
The function \(f\) is a bounded function.
The function \(f\) is an odd function.

9000008002

Level: 
A
Consider the point \(A = [-1;-3]\) and the function \(f(x) = \frac{k} {x}\) with a nonzero real parameter \(k\in \mathbb{R}\setminus \{0\}\). Identify the value of the parameter \(k\) which ensures that the point \(A\) is on the graph of \(f\).
\(3\)
\(1\)
\(- 1\)
\(- 3\)