Y= -2X
Y= -2•3
Y= -6
X=3
Y= -2X
Y= -2•(-3)
Y=6
X= -3
Answer is y= -2X
If this is the dance position you are describing, then the arm and the leg of the dancer both make "right" angles (90º angles) to the floor.
U have an arithmetic sequence with a common difference of 3
A(n) = -4 + (n-1) * 3
I think they both go into 10,000 bases of the calculations from the calculator on my phone
