Find the equation of a line perpendicular to y=x−3 that contains the point (2,1). Write the equation in slope-intercept form.

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18 votes

perpendicular gradient (m) = -1
slope intercept form = y - y1 = m(x - x1)

y - 1 = -1 (x -2)
y - 1 = -x + 2
y = -x + 3

Ouss answered Jan 18, 2023

by Ouss

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