Which relation is a function?
a. x y
4 -2
5 -3
6 -2
7 -3
b. x y
3 10
2 20
3 30
4 40
c. x y
-5 2
-5 3
-10 4
-10 5
d. x y
10 15
20 25
8 30
20 35

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Find the multiplicative inverse of 8-12i

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.