y = 4x is a formula or open statement. It can be used to define the function, f = [(x,y) : y = 4x} , commonly denoted by f(x) = 4x.
That is a function. x=y^2 is not a function.
y = -4.8, x = -1.6 -4.8/-1.6 = 3y = 3xWhen y = -24-24 = 3x(divide both sides by 3)-8 = xSo x = -8
It would be rewritten as y=(2/5)x+3
13 = 12x - 2y Adding 2y to both sides: 13 + 2y = 12x Subtracting 13 from both sides: 2y = 12x - 13 Divide both sides by 2: y = 6x - 6.5