SOLUTION: write the equation of the line perpindicular to X+3Y-12=0 and passing through point (-5, -9)

Algebra.Com
Question 440193: write the equation of the line perpindicular to X+3Y-12=0 and passing through point (-5, -9)
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
.write it in


any two perpendicular lines are negative reciprocals of each other
if you're given the slope of, you can find the perpendicular slope by this formula:
is the perpendicular slope

........So the perpendicular slope is
Also since the unknown line goes through (-5,-9), we can find the equation by plugging in this info into the point-slope formula

Point-Slope Formula:

where m is the slope and (x1,y1) is the given point




here is the graph:




RELATED QUESTIONS

Find the equation of the line passing through (-1,2) and perpindicular to... (answered by stanbon)
what is the standard form of the equation of the line passing through the point (-2,-2)... (answered by Maths68)
Write the equation of the line perpendicular to 3y -x = 2 and passing through (9,... (answered by MathLover1,MathTherapy)
Write an equation of the line passing through the point (6,-3) and perpindicular to the... (answered by Alan3354)
Write an equation of a line passing through point(-1,9) and perpendicular to the line... (answered by Maths68)
find an equation of the line having the given characteristics X-intercept = 2; passing (answered by ankor@dixie-net.com)
Write the equation of the line passing through the point (−5,5) and perpendicular to... (answered by ikleyn)
Write an equation of the Line 1 passing through (3,-4) that is parallel to the Line II... (answered by Electrified_Levi)
write an equation in slope intercept form of the line satisfying the given condition. The (answered by Fombitz)