What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}?

a.
domain: {3, 5, 9, 2 }; range: {1, 7}

b.
domain: {3, 5, 9, 2, –4}; range: {1, –1, 7}

c.
domain: {1, –1, 7}; range: {3, 5, 9, 2, –4}

d.
domain: {1, 7}; range: {3, 5, 9, 2 }

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?