B

9000007702

Level: 
B
Identify a correct statement which concerns the function \(f(x) = \frac{1} {-x+2}\).
None of the statements above is true.
The function \(f\) is an increasing function.
The function \(f\) is bounded below.
The function \(f\) has a maximum at \(x = 2\).
The function \(f\) is decreasing on \((2;\infty )\).

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.

9000007507

Level: 
B
The graph of the function \[ f(x) = \frac{2x - 4} {3x + 2} \] is a hyperbola. Find the center of this hyperbola.
\(S = \left [-\frac{2} {3}; \frac{2} {3}\right ]\)
\(S = \left [-\frac{3} {2}; \frac{2} {3}\right ]\)
\(S = \left [\frac{2} {3};-\frac{3} {2}\right ]\)
\(S = \left [-\frac{2} {3};-\frac{2} {3}\right ]\)
\(S = \left [\frac{3} {2}; \frac{3} {2}\right ]\)