Lets see the third line over here. Plugging in the point given into the equation y 12x b and solving for b we get b 6. Coordinates and line equation is the prerequisite to finding out the perpendicular line.
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Their product is -1. This video covers one example on how to determine if two linear equations are parallel perpendicular or neither. 16 9 4b Solve for b and you will have the y-intercept. Find the equation of a line passing through the point 6 3 perpendicular to the line.