Question

Indentify an equation in point-slope for the line perpendicular to y=3x+5

Answer 1

y=3x+5 has slope = 3

perpendicular lines, slope is opposite and reciprocals so slope of new line = -1/3

passing thru (4,-1)

so equation

y + 1 = -1/3(x - 4)

Answer is B

y + 1 = -1/3(x - 4)