perpendicular to a line with a slope of -3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So we have a slope of -3 (or -3/1).....flip it, making it -1/3....change the sign, making it 1/3. So our perpendicular line will have a slope of 1/3.
y = mx + b
slope(m) = 1/3
(6,1)....x = 6 and y = 1
now we sub into the formula and find b, the y int
1 = 1/3(6) + b
1 = 2 + b
1 - 2 = b
-1 = b
so ur perpendicular equation is : y = 1/3x - 1 <==
