Question 415705
your equation is y = -x


your dependent variable is y and your independent value is -x.


you pick values of x and then you find values of y that correspond to that.


when x = 1, y = -1
when x = 2, y = -2
when x = 3, y = -3
when x = 0, y = 0
when x = -1, y = 1
when x = -2, y = 2
etc.


your equation is now x = 3y


your dependent variable is now x and your independent variable is now y


you would select values of y and then you would solve for values of x.


when y = 1, x = 3*1 = 3
when y = 2, x = 3*2 = 6
when y = -5, x = 3*(-5) = -15
etc.


with the equation x = 3y, if you want to make x the independent variable and you want to make y the dependent variable, you would need to switch the equation around.


you would do that as follows:


x = 3*y


divide both sides of the equation by 3 to get:


x/3 = y


flip the sides of the equation to get:


y = x/3


you have now made x the independent variable and y the dependent variable.


when x = 3, y = 3/3 = 1
when x = 6, y = 6/3 = 2
when x = -15, y = -15/3 = -5