Rewrite the relation as a function of x.

Question

x² + x = -x — 3y

Answer 1

x² + x = -x - 3y

1st get all the x terms on one side of the equation.

Add x to both sides. x² + x + x = -x + x -3y

x² + 2x = -3y

Divide both sides by -3

(x² + 2x)/-3 = y = f(x)

Answer 2