Question 1126749
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Please help me solve this;


"AB has endpoints A(-5,0) and B(4,3). CD has endpoints C(-3,9) and D(1,-3). The equations of the lines containing AB and CD are x - 3y = -5 and 3x + y = 0, respectively."

a. How could you quickly check that these equations are correct?
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Sub the x & y values into the equations.
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b. Verify that the lines are perpendicular.
If the product of the 2 slopes is -1 they're perpendicular.
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c. Find the point of intersection of AB and CD by solving the system of equations.
Do that.
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d. Find the midpoints of AB and CD. Compare your results with Part c.
do that.
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e. What kind of quadrilateral is ACBD? Explain your reasoning.