Determine whether the graph of the function is symmetric about the y-axis, the origin, or neither.

$$y = e ^ { - x ^ { 2 } }$$

Use the appropriate sum or difference identity to prove the double-angle identity.

$$tan2u=\dfrac{2tanu}{1-tan^2u}$$

Determine if each relationship is a proportional or nonproportional situation. Explain your reasoning.

$$v = \frac { 1 } { 10 } u$$

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Determine the truth value of the conditional statement. If true, explain your reasoning. If false, give a counterexample. If x^2 = 16, then x = 4.

Find the exact value of each expression. Do not use a calculator.

$$\cot \left( - \frac { 8 \pi } { 3 } \right)$$

Suppose the total price at Shoe Shoppe had been $103? What are some conditions of a rebate that would make it a better decision to buy the shoes at Go Run? $$ \begin{matrix}\text{Go Run} & \text{Shoe Shoppe}\\\mathrm{Reg. price: $109} & \mathrm{Reg. price: $89}\\\mathrm{Take \ $5 \ off \ 1 \ pair.} & \mathrm{Mail-in \ rebate: $30}\\\text{Buy 1 pair, get 1 pair free} & \text{per pair (limit 2)}\\\end{matrix} $$

Tell whether the given information is enough to write an equation of a line. Justify your answer. Both intercepts of the line

State the property of real numbers being used. 2(A + B) = 2A + 2B

Solve the equation by graphing.

$$- x ^ { 2 } + 16 x = 64$$

Complete the statement with equal to, greater than, or less than.

$$\frac { 2 } { 2 } \times 1 \frac { 1 } { 2 }$$

will be ______

$$1 \frac { 1 } { 2 }$$

Solve the equation. Check your solution. 54 = 9x

Find the exact value of each expression if

$$270 ^ { \circ } < \theta < 360 ^ { \circ }$$

$$\text { If } \csc \theta = - \frac { 5 } { 3 } , \text { find } \cos \theta$$

Graph the function. Then state the domain and range. y=-6√x

Plot the given point in a rectangular coordinate system.

$$(-4, -2)$$