Answer:
(15,-30) when y=-2x
Step-by-step explanation:
As you can see in the point in the graph the relationship between x and y would be y=-2x or y=x+60, but since proportional relationships require that y equals x times something that is not an option.
So we just have to evaluate the possibilities from the points given for this problem with the relationship found:
(-40,20)
y=-2x> y=-2(-40)> y=80> since y is not equal to 80 this one is wrong
(-10,-20)
y=-2x> y=-2(-10)> y=20 since y= 20 is not true this is wrong
(15,-30)
y=-2x> y=15(-2)> y=-30 since y=-30 this is correct
(5,-15)
y=-2x> y=-2(5)> y=-10 since y=-10 is not true, this is wrong
So after evaluating the options we know that the correct one that would create a proprotional relationship would be (15,-30)
