math
posted by Louise .
how do you write an equation of the line containing point (4,3) and perpendicular to the line y=3x5? show steps please

you should have come across the property that the slopes of perpendicular lines are "negative reciprocals" of each other.
slope of y = 3x+ 5 is 3
so the slope of new line is 1/3
new equation: y = (1/3)x + b
sub in the point(4,3) to find b
replace b in the new equation and you are done.
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