A radius is a straight line from the centre to the edge of a circle. i’m not sure about any examples sorry :/
Step-by-step explanation:
-3y=12+3x
-y=4+x
y=-4-x and m which is the gradient is the coefficient of x which is -1, therefore m=-1
y = 1x + 3, also y = 1x + 4 both of those are parallel
