21) Michelle has just been informed that her cell phone plan will be increasing in price. Her new pricing
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First, find the slope of the line contains the points (1,-6) and (-2,6) using slope formula
m =
plug in the numbers
m =
m =
m =
m = -4
Second, determine the slope of perpendicular line
The slope of the perpendicular line is the opposite and reciprocal from the other line. Thus, the slope is
m =
plug in the numbers
m =
m =
m =
m = -4
Second, determine the slope of perpendicular line
The slope of the perpendicular line is the opposite and reciprocal from the other line. Thus, the slope is