Verifying that and are Not Perpendicular
To determine whether the lines and are perpendicular, convert both equations to slope-intercept form and check if their slopes are negative reciprocals.
First equation: Solve for . Subtract from both sides: Divide both sides by : The slope is .
Second equation: Solve for . Subtract from both sides: Divide both sides by : The slope is .
Check for negative reciprocals: The slopes and are reciprocals, but they share the same sign (both are negative). Therefore, they are not negative reciprocals. This can also be verified by computing their product:
ight)\left(-\frac{2}{7} ight) = 1$$ Because the product of the slopes is $$1$$ rather than $$-1$$, the lines are not perpendicular.0
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