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msn009
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Hi, i get the math that is involved but if I have only the x,y coordinates for 2 points to connect and if i want to know what will be the perpendicular line to the line connecting these two points, how can I do that?
That's the slope-intercept form of the equation for a line: y = mx + b, where m is slope and b is the y-intercept. (Look it up!)msn009 said:when i mentioned that i understand the math, the examples given usually has numbers in it like y = 3x+2
Start by finding the slope.msn009 said:but in my case i only have the x and y values, so which formula should i actually use?
msn009 said:Hi, i get the math that is involved but if I have only the x,y coordinates for 2 points to connect and if i want to know what will be the perpendicular line to the line connecting these two points, how can I do that?
If you have the equation of a line it is pretty simple to find a couple of points on that line.msn009 said:yes there will be many possible lines.
when i mentioned that i understand the math, the examples given usually has numbers in it like y = 3x+2 but in my case i only have the x and y values, so which formula should i actually use? thanks.
Use the definition of slope, which was given in an earlier post. Or just look it up! https://en.wikipedia.org/wiki/Slopemsn009 said:and so now i need to find the slope of this line
As explained above, given two points you can find the equation of the line that connects them. But there is an infinite number of lines perpendicular to that one. Do you want that perpendicular line to intersect the first line at some particular point? Up to you!msn009 said:i get this part and i have compute the slope of the line from point A to B. what I don't understand now is the intercept value y=mx + b. I can compute the b value since I now have x, y and m values but should I use this same b value to compute the perpendicular line?
To calculate the slope of a perpendicular line, first find the slope of the original line by using the formula (y2-y1)/(x2-x1). Then, take the negative reciprocal of this slope to get the slope of the perpendicular line.
The equation of a perpendicular line can be written in the form y = mx + b, where m is the slope of the line and b is the y-intercept. Remember to take the negative reciprocal of the original slope to find the slope of the perpendicular line.
No, the Pythagorean Theorem is used to calculate the length of the hypotenuse in a right triangle. To find the length of a perpendicular line, you will need to use the distance formula or the slope formula.
To find the point of intersection between two perpendicular lines, set the equations of the lines equal to each other and solve for the x and y values. This will give you the coordinates of the point where the two lines intersect.
Yes, the slope-intercept form (y = mx + b) can be used to write the equation of a perpendicular line. Remember to take the negative reciprocal of the original slope to find the slope of the perpendicular line.