For which value of X is the relation not a function? Plz answer ASAP test due in 10 minutes

A.6
B.1
C.3
D.4

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.