Which of the following relations is a function? OA. (9,-10).(-8, 7), (9,6), (-8, 12)

OB. (-8, 0), (-1,5). (-8, -3), (5,9)

OC. (-1,-2), (-8,-5), (5,8). (5,2)

OD. (-8,2).(-1,3), (5,7), (9,2)

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is