Answer
a) Please see the graph.
b) 344.142 feet
c) All of the speeds in the table are between 10 and 45 miles per hour. 90 miles an hour is an outlier, so there would be a much larger gap.
d) The slope would increase with adding the new point to the graph. The intercept would decrease with adding the new point.
Work Step by Step
a) Please see the graph created in Microsoft Excel.
b)
$m= (164-44)/(40-15)$
$m = 120/25$
$m= 4.8$
$y=mx+b$
$44 = 15*4.8+b$
$44 = 72 + b$
$44-72 = 72+b-72$
$-28 = b$
$y=4.8x-28$
