9. which relation represents a function? a. {(−1, 3), (0, −1), (1, 3), (2, 5)} b. {(1, −1), (−1, 0), (1, 1), (3, 2)} c. {(5, −1), (3, −1), (4, 1), (5, 2)} d. {(−4, 2), (1, −2), (0, 0), (1, 1)}

The answer you would be looking for is A

Step-by-step explanation:

took the test it's 94

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.