Question 356722
write a equation that is perpendicular to y=5x+7 and passes through (-15, 6)
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compare with y = mx +b
m= slope = 5
slope of line perpendicular to this line will be -1/5.
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point (-15,6)
plug value of x,y &m to find b

6=-1/5 * -15 +b
6=-3+b
b=9
y=-x/5 +9 is the equation
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{{{graph(300,300,-10,10,-10,10,(5x+7),((-x/5)+9))}}}
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m.ananth@hotmail.ca