Give the domain and range of the function.
$f(x)=\frac{1}{x^2}$.

Convert the radian measure into degree measure.
$-3 \pi / 2$.

(a) Find the distance between the points $P, Q$. (b) Find the midpoint of the line segment $\overline{PQ}$.
$P(2,-3), Q(1,4)$.

Solve the inequality. Express the solution as an interval or as the union of intervals. Mark the solution on a number line.
$\left|\frac{5}{x+1}\right|<1$.

Give the domain and range of the function.
$f(x)=\sqrt{x}+5$.

Write an equation for the line with
slope $5$ and $y$-intercept $−2$.

Convert the degree measure into radian measure.
$3^{\circ}$.

Evaluate
$|2-\pi|$.

Solve the inequality and express the solution set as an interval or as the union of intervals.
$|x| \ge 1$.

Evaluate
$|-5|+|-8|$.

Convert the degree measure into radian measure.
$15^{\circ}$.

Give the domain and range of the function.
$f(x)=2x-3$.

Solve the inequality. Express the solution as an interval or as the union of intervals. Mark the solution on a number line. \

$$\left|\frac{2}{x+4}\right|>2$$

Solve the inequality and express the solution set as an interval or as the union of intervals.
$|x| < 2$.