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April 17, 2012
Apr 164:37 PM
4/17 Warmup
Write the equation of the line that goes through (‐4, ‐2) and (‐5, 2).
Apr 164:39 PM
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April 17, 2012
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April 17, 2012
Apr 164:41 PM
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April 17, 2012
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April 17, 2012
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Apr 1711:23 AM
Median Median Line
1. Make sure data is in order by the x values.2. Group data into three equal groups.3. Identify the summary points by finding the median x's and the median y's.4. Calculate the slope using the 1st and 3rd summary points.5. Calculate the mean x and mean y using all three summary points.6. Plug m, x, and y into y = mx + b to find the y‐intercept (b).7. Write the equation (round to the nearest tenth).