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Printsmc
geometry intermediate
Problem
Given the four equations: The pair representing the perpendicular lines is:
(A)
(B)
(C)
(D)
Solution
Write each equation in slope-intercept from since the slopes are easier to compare. Equation in slope-intercept form is . Equation in slope-intercept form is . Equation in slope-intercept form is . Equation in slope-intercept form is . Remember that if the two lines are perpendicular, then the product of two slopes equals . Equations and satisfy the condition, so the answer is .
Final answer
A