Video:How to Find Slope With a Graph

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Transcript:How to Find Slope With a Graph

How can you verify the slope of a line just by looking at its graph? Think rise over run.

What Is Slope?

Slope is a ratio between the change in y and the change in x. In fact, slope is written in the following format: rise/runy= 1/2x + 2

How to Find the Slope Easily

Refer to the image of the graph of y= 1/2x + 2 and choose a couple of points on the line. Point A (-4,0) and Point B (0,2) Start with the rise. Put your finger on Point A and countup until you are across from Point B. You moved up 2 units; rise is 2. Continue with the run. You moved across 4 units; run is 4. Therefore: rise/run = 2/4 .Simplify and discover that the slope of the line is 1/2.

Tips for Finding the Slope

Quick tip for rise: Move your finger up, and rise is positive. Move your finger down, and rise is negative.

Quick tip for run: Move your finger to the right, and run is positive. Move your finger to the left, and run is negative. Example 2 :Point A (-6,0) and Point B (0,4)Start with the rise. Put your finger on Point A and countup until you are across from Point B. You moved up 4 units; rise is 4. Continue with the run. You moved across 6 units; run is 6.Therefore: rise/run = 4/6=2/3. Simplify and discover that the slope of the line is 2/3.

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