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cokefree
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Could some tell me what's the other way you could find if lines are perpendicular, other than graphing. I know another way to do it, and its algebracaly, but there's another way you could do it algebracaly too.
To determine if two lines are perpendicular, you can use the slope formula to find the slopes of the lines. If the slopes are negative reciprocals of each other (i.e. the product of the slopes is -1), then the lines are perpendicular.
No, the Pythagorean Theorem is used to find the length of the hypotenuse in a right triangle. It cannot be used to determine if two lines are perpendicular.
No, you can use algebraic methods to determine if two lines are perpendicular. Graphing is not required, but it can help with visualization.
The formula for finding the slope of a line is (y2-y1)/(x2-x1), where (x1,y1) and (x2,y2) are two points on the line.
No, two horizontal lines have the same slope (0) and therefore cannot be perpendicular. Perpendicular lines have slopes that are negative reciprocals of each other.