SOL Review 10-2

The formula shown can be used to find A, the amount of money Raul has in his savings account.

$$A=P+\Pr t$$

Raul wants to find r, the rate of interest his money earns. Which equations is correcly solved for r?

What are the real roots of $$x^2-7x+10=0$$ ?

A data set with an even number of data points is ordered from least to greatest. The middle two data points are represented by $$x_1$$ and $$x_2$$ . This formula can be used to find the median of the data set.

$$m=\frac{x_1+x_2}{2}$$

Which shows this formula solved for $$x_1$$ ?

Which equation represents the horizontal line passing through (7,5)?

The graph of $$y=x^2-2x-8$$ is shown.

What are the soltuions to $$x^2-2x-8=0$$ ?

What value of p will make this equation true?

$$\frac{6p+4}{6}=\frac{4p-8}{3}$$

What is the slope of the line represents by this equation?

$$3x+5y=-7$$

(a)  

The length, l, of a rectangle is 3 times its width. The perimeter of the rectangle is greater then 48 centimeters. Which inequality expresses all the possible lengths, in centimeters, of the rectangle?

Using the ordered pairs shown, create a relation containing three ordered pairs with a domain of {-1, 2, 4}.

The relation is an inverse variation.

$$\left\{\left(-1,8\right),\left(4,-2\right),\left(-2,4\right)\right\}$$

Which equation represent this relation?