91Ó°ÊÓ

What is the vertex of the parabola graphed below?

$$\begin{gathered} A\left(2,0\right) \\ B\left(0,2\right) \\ C\left(−\mathbf{2}\mathbf{,}\mathbf{2}\right) \\ D\left(\mathbf{2}\mathbf{,}−\mathbf{2}\right) \end{gathered}$$

Use a table of values to graph the following functions. State the domain and range.

$\mathit{y}\mathbf{=}{\mathit{x}}^{\mathbf{2}}\mathbf{+}\mathbf{2}\mathit{x}\mathbf{+}\mathbf{5}$

The table shows the total cost of renting a canoe for$n$hours.

a. Write a function to represent the situation.

b. How much would it cost to rent the canoe for 7 hours?

Determine whether each trinomial is a perfect square trinomial. Write yes or no. If so, factor it.

$4x^2+28x+49$

Determine whether each trinomial is a perfect square trinomial. Write yes or no. If so, factor it.

$k^2−16k+64$

Juan hits a baseball. The equation $h=−16t^2+120t$models the height $h$, in feet , of the ball after $t$seconds. How long is the ball in the air?

Solve each equation by graphing. If integral roots cannot be found, estimate the roots to the nearest tenth.

$x^2−3x−4=0$

Solve the equation by using the Quadratic formula. Round to the nearest tenth if necessary.

$2x^2+x−15=0$

Find the next three terms of each arithmetic sequence.

$2,10,18,26,\mathrm{...}$

Describe how the graph of the function $f\left(x\right)=x^2+8$is related to the graph $f\left(x\right)=x^2$.