X + 5y = 6 5y = -x + 6 y = -1/5x + 6/5....the slope here is -1/5. A perpendicular line will have a negative reciprocal slope. All that means is flip the original slope and change the sign. So we flip -1/5 and make is -5/1....and we change the sign...making it 5/1 or just 5. So our perpendicular line will have a slope of 5.
y = mx + b slope(m) = 5 (2,-2)...x = 2 and y = -2 sub and find b, the y int -2 = 5(2) + b -2 = 10 + b -2 - 10 = b -12 = b
Maybe it was (7-2x)/-4+2<-x then times 4 both sides
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-7+2x+8<-4x
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2x+1<-4x
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6x+1<0
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6x<-1
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x<-1/6
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there we go
