Which equation represents a line that passes through (–9, –3) and has a slope of –6?
1. y – 9 = –6(x – 3)
2. y + 9 = –6(x + 3)
3. y – 3 = –6(x – 9)
4. y + 3 = –6(x + 9)

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price

How can you find the mean absolute deviation (mad) for this set of data?