3. While surfing the Internet, you find a site that claims to offer "the most popular and the cheapest DVDs anywhere." Unfortunately, the website isn't
clear about the how much they charge for each DVD, but it does give you the
following information:
Number of DVDs Ordered 1 2 3
Total Cost (includes S&H) $15 $24 $33
a. Plot the points and connect them to form a line.

b. What is the slope of the line containing the data points?
c. What does the slope represent in this problem?
d. What is the y-intercept of the line that contains the data points?
Continue on the following page.
e What does the v-intercept represent in the context of this problem

e. What does the y-intercept represent in the context of this problem?
f. Your friend says that he can get a dozen DVD's from this website for $90.
Is he correct? Explain.
g. How much would it cost to order 50 DVD's from this website?

Bring the fraction a/a-4 to a denominator of 16-a^2

What does independent variable and dependent variable mean in math?

Design an er diagram for keeping track of information about votes taken in the u. s. house of representatives during the current two-year congressional session. the database needs to keep track of each u. s. state's name (e. g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i. e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information: