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Co-ordinate Geometry Assessment Help
Help please 
i cant do my assessment and its due in tomorrow!!!
Can anyone help?
1. The Point A and B have coordinates (3,4) and (7,-6) respectively. The stright line 'l' passes through A and is perpendicular to AB. Find an equation for 'l', giving your answer in the form ax+by+c=0, where a, b and c are integers.
2. The stright line 'l1' has equation y=3x-6. The stright line 'l2' is perpendicular to 'l1' and passes through the point (6,2).
Find an equation for 'l2' in the form y=mx+c, where 'm' and 'c' are constants.
Theres others but these for now
Please help !
i cant do my assessment and its due in tomorrow!!!
Can anyone help?
1. The Point A and B have coordinates (3,4) and (7,-6) respectively. The stright line 'l' passes through A and is perpendicular to AB. Find an equation for 'l', giving your answer in the form ax+by+c=0, where a, b and c are integers.
2. The stright line 'l1' has equation y=3x-6. The stright line 'l2' is perpendicular to 'l1' and passes through the point (6,2).
Find an equation for 'l2' in the form y=mx+c, where 'm' and 'c' are constants.
Theres others but these for now
Please help !
Glitchezz
Bump
Advice:
1. Post maths questions in the maths forum you are more likely to get a quick repsonse
http://www.thestudentroom.co.uk/forumdisplay.php?f=38
2. Don't leave assessments to the last minute if you are going to need help from TSR users as people aren't online 24-7 to answer questions
For these problems do you know how to find an equation for a line when you know the gradient of the line and the coordinates of a point on that line?
What have you learnt about the gradient of 2 lines that are perpendicular to each other?
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