SOLUTION: find an equation in the form y=mx+b through (-7,4), perpendicular to y=8

Question 127326: find an equation in the form y=mx+b
through (-7,4), perpendicular to y=8
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
A perpendicular to line that has slope will have
slope - . The line you want the equation for
is perpendicular to , which is a horizontal line
intersecting the y-axis at (0,8). A horizontal line has
slope = 0, so the perpendicular has slope
which is a vertical line through
This is the equation. It is not a function of
since should only have 1 value for each value
of . On a vertical line, will have an
infinite number of values for a single
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