11, Quadrilateral EFGH is on a coordinate plane. Segment FG is on the line 3x ? y = ?2, and segment EH is on the 3x ? y = ?6. Which statement proves how segments FG and EH are related?

a. They have opposite reciprocals slopes ofand ?3 and are, therefore, perpendicular.

b. They have the same slope ofand are, therefore, parallel.

c. They have opposite reciprocal slopes ofand 3 and are, therefore, perpendicular.

d. They have the same slope of 3 and are, therefore, parallel.

12, Elliott is standing at the top of a store escalator that leads to the ground floor below. The angle of depression from the top of the escalator to the floor is 42.51, and the escalator is 16 feet long. How far is the top of the escalator from the ground floor? Round your answer to the nearest foot.

a. 41 feet

b. 17 feet

c. 12 feet

d. 11 feet

13, If A is the center of the circle, then which statement explains howEFis related toGF?

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