m=-2/3; b=45

Answer 1

What are you trying to figure out here? (x,y) ?

Answer 2

If you think about equation of a straight line:

y=mx+b

y= (-2/3)*x+45

Answer 3

Anonymous is right. m is the slope of the line and b is the y intercept.

So the graph will have a negative slope of (rise/run) -2/3 and it will cross the axis at y=45