+33614 If you write this equation in the form y = x + 4, then you can see that its slope is 1 (the coefficient of the x term). Any line perpendicular to this will have a slope of -1 (= the negative inverse of the slope of the given line).
However, there will be an infinite number of lines that are perpendicular to the given line, so, a general equation for the perpendicular line is y = -x + c where c is a constant. You need more information (such as a point through which you know the perpendicular line goes) before you can specify c.
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+109 y+x=-4
Because perpendicular is the opposite of the originial problem.
Use the method I came up with called "OpiFlip"
Which means opposite before and flip the last.
+33614 If you write this equation in the form y = x + 4, then you can see that its slope is 1 (the coefficient of the x term). Any line perpendicular to this will have a slope of -1 (= the negative inverse of the slope of the given line).
However, there will be an infinite number of lines that are perpendicular to the given line, so, a general equation for the perpendicular line is y = -x + c where c is a constant. You need more information (such as a point through which you know the perpendicular line goes) before you can specify c.
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