1. (3,2)....because when finding the slope, we find the the slope of mn and the slope of op are negative reciprocals.
2. y = 5x - 7.....slope here is 5....perpendicular line has a negative reciprocal slope...so the slope has to be -1/5
y= mx + b slope(m) = -1/5 (-10,3)...x = -10 and y = 3 now we sub and find b, the y int 3 = -1/5(-10) + b 3 = 2 + b 3 - 2= b 1 = b so ur perpendicular equation is : y = -1/5x + 1
