Which equation(s) represent(s) proportional relationship(s) with a constant of proportionality equal to -2? Select ALL that apply.
y = 2
- 2x
2y
2 + 2
2y =
40
0 g = 0
2
Oy + 2 = 2 + 2

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.