How do you find the slope of a graph? What if the graph as no points, just a line? What do I do? Please explain in the simplest way possible.

Question

anonymous · Answer

Well, first of all. A graph is a set of points. A line is a set of points.

anonymous · Answer

start someplace on the graph of the line. if you have graph paper start at a corner point on the paper.  count one step to the right, and see if the line has gone up or down. if up, the slope is positive. if down, negative.
if you go to the right one and the line goes up 2 then the slope is 2.  if you go to the right one and the line goes  down three units, the slope is -3

if you cannot tell exactly, go to the next "lattice point" and see.  say you go right two units and the line increases by 3, then the slope is 3/2

paxpolaris · Answer

If the graph is a line.. choose any two points $$(x_1,y_1)\ and\ (x_2,y_2)$$ the slope is given by: $${y_2- y_1 \over x_2 - x_1}$$

paxpolaris · Answer

that is just a formal way at looking at what satellite said