Functions - ACT Math

If $f(x) = 2x + 4$, find $f^{-1}(x)$.

What is the vertex of $f(x) = (x - 3)^2 + 2$?

What is the domain of $f(x) = \dfrac{1}{x}$?

If $f(x) = x^2$, describe the graph of $g(x) = -x^2$.

What is the range of a function?

If $f(x) = 4x - 1$, find $f(0)$.

What does the notation $f(x)$ mean?

What is the $y$-intercept of $f(x) = -2x + 5$?

If $f(x) = x^2$ and $g(x) = x - 1$, find $f(g(2))$.

What is the vertex form of a quadratic function?

What transformation does $af(x)$ represent when $a > 1$?

If $g(x) = x^2 - 4$, find $g(3)$.

If $f(x) = x^2$, describe the graph of $g(x) = 3x^2$.

What is the domain of $f(x) = \sqrt{x}$?

What is an inverse function $f^{-1}(x)$?

The graph of $f(x)$ passes through $(2, 5)$. What point does the graph of $f(x) + 3$ pass through?

If $h(x) = \dfrac{x}{2} + 1$, find $h(8)$.

Does the graph of $y = 2x + 1$ represent a function?

What is the axis of symmetry for a parabola?