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The graph of a function $f$ is shown above. Which of the following statements about $f$ is false?
$$f(x) = \begin{cases} 2 - 3x & \text{for } x \le 2 \\ kx + 1 & \text{for } x > 2 \end{cases}$$
The function $f$ is defined above. For what value of $k$, if any, is $f$ continuous at $x = 2$ ?
Let $f$ be the function given by $f(x) = \frac{(x-2)(x+3)}{(x-2)(x+1)}$. For which of the following values of $x$ is $f$ not continuous?
What are the equations of the horizontal asymptotes of the graph of $y = \frac{3x}{\sqrt{x^2-1}}$ ?
| $x$ | $0$ | $1$ | $2$ |
|---|---|---|---|
| $f(x)$ | $1$ | $k$ | $2$ |
The function $f$ is continuous on the closed interval $[0, 2]$ and has values that are given in the table above. The equation $f(x) = \frac{1}{2}$ must have at least two solutions in the interval $[0, 2]$ if $k =$