SOLUTION: how do you find for y if you have this problem (3,-7) 2x-5y=3

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Question 1131741: how do you find for y if you have this problem
(3,-7) 2x-5y=3

Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
Makes no sense.


Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
given:
point (,)
equation of a line:
case 1:
since you have nothing else, I guess you need to prove does this point lie on givren line
...........plug in x and y coordinates of the given point


=> point (,) does not lie on given line

case 2:
you might have to find equation o another line that is parallel or perpendicular to given line and passes through given point
so, if you need to find a line that is parallel to given line and passes through given point, you need
first write your line in slope-intercept form (solve it for ):



=>slope is
since parallel lines have same slope, so far your equation is
.........use point (,) to ind






and, parallel line is:



case 3:
if you need to find a line that is perpendicular to given line and passes through given point,
perpendicular line will have a slope negative reciprocal of the and it is:


.........use point (,) to ind





and, perpendicular line is:





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