29.99 * 55\100 = 16.49 $
29.99 - 16.49 = 13.5 $
<span>From the given data above, I used a scatter plot to present my graph using microsoft excel and added a trend line to get the line of best fit. The equation that I got is y = 2.3775x + 1.1011 and the r</span>² = 0.8922.<span>
</span>Part A: The temperature of the city is directly proportional with the number of people at the swimming pool because it showed an r² = 0.8922. Also, the line is linear with first degree.
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Part B: You can make a line of best fit by:
</span>
<span>1. Plot your data in a
graphing paper or excel.
2. Make sure that your plotted data has a solid mark to indicate the points in
the graph.
3. Divide your data points by labeling x at the center, at the farthest part of
your line (left or right diagonally).
4. If you feel that the data are now finely divided, then construct a line base
on the x marks you're placing
5. Then you will notice how far or near your date points are by simply looking
at the points near the constructed line that you created.</span>