The slope of the line is 4/11. to find this use, m=y2-y1/x2-x1 :)
Y=-13+1
y=-12
So the "range" is only a single number...-12
Man let me work this out and get back with you
Diagram is attached. No, the relation is not a function.
In order for a relation to be a function, each input value must be mapped to no more than 1 output value. One of our input values, -2, is mapped to 2 output values (-1 and 0). Therefore this is not a function.