Why do we need to find the slope of a line? The slope of a line tells us how something changes over time. If we find the slope we can find the rate of change over that period.
Why do we need to find the slope of a line?
The slope of a line tells us how something changes over time. If we find the slope we can find the rate of change over that period. - See more at: http://www.algebra-class.com/rate-of-change.html#sthash.KmE8ACMR.dpuf