We often use functions to model or represent situations and relationships. These representations can be as equations, graphs, tables, or even verbal descriptions. What does it mean to “represent” something? In what other situations have you heard that term used, and how was its meaning in those situations similar to its usage in algebra?

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

The suare root of 9x plus 7 plus the square rot of 2x equall to 7