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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): 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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