9000010606
Level:
A
Identify a function which is increasing on
\((-1;3)\).
\(f(x) = (x + 2)^{2}\)
\(f(x) = x^{2} + x\)
\(f(x) = x^{2} - x\)
\(f(x) = (x - 2)^{2}\)
\(f(x) = -x^{3}\)
\(f(x) = x^{2} + 1\)
Power and radical functions
9000011103
Level:
A
In the following list identify an increasing function.
\(f(x) = x^{5}\)
\(f(x) = x^{2}\)
\(f(x) = x^{-3}\)
\(f(x) = x^{-4}\)
\(f(x) = 2x^{0}\)
9000010607
Level:
A
Identify a function which is one-to-one on the interval
\([ - 2;2] \).
\(f(x) = x^{3} - 2\)
\(f(x) = x^{2} - 2\)
\(f(x) = -x^{2} + 2\)
\(f(x) = x^{-2} + 2\)
\(f(x) = \frac{1}
{x} - 2\)
\(f(x) = x^{4}\)