SOLUTION: 21. Write the equation of the line passing through (2, �2) and (�4, �2).

Question 27182: 21. Write the equation of the line passing through (2, �2) and (�4, �2).
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Use the formulas

and

first
-2 - (-2) / -4 - 2 = 0
then
y - (-2) / x - 2 = 0 (I now know the slope is zero)
y + 2 / x - 2 = 0
y + 2 = 0
y = -2
That makes sense, because y didn't change (2, -2) (-4, -2)
so, (any x, -2) solves the equation.
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