Which of the following relations is a function? OA. (2,0), (-5,3), (5, 1), (-5,5)
B. (2, 4), (-5, 2), (5, 1), (-8, 2)
OC.
(2,4), (-5, 6), (2, 3), (-8, 2)
D. (5, 1), (-5, 4), (2, 1), (5,2)

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?