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Lesson 13: Linear and nonlinear functions

# Interpreting a graph example

Learn to interpret the graphs of a linear functions. Created by Sal Khan.

## Want to join the conversation?

• can u plz give more examples because every problem isn't always worked out the same as this one
• I know right with my problem it is exactly what you mean.
• they need more examples I still don't understand what to do cause all I get for an example is this none of the questions are like this.
• Math reminds me of doing homework..... Non-existent...
• please more examples this program makes no sense
• Man, I still don't get this I need someone to explain it more clearly - not saying that sal doesn't do a good job. Like I don't get how at he said we move 1 in the x-direction we move -1 in the y direction
• To find the slope of a line you need to look at the rise over run.If a line is tilted to the right the slope will be positive and if its going to the left it will be negative. to find the slope he is looking for points that the line goes through, you don't always only move 1 unit it depends on how far apart the points are. for easier viewing some people draw whats called a triangle. This shows two points that the line goes through. The triangle will also make it easier to look at the rise (y) over run (x).
• how do you interpret a graph
• Yes, this video is given as the "help" on a question with a loopy radio frequency type line that asks for "y-intercept", "smallest possible x-intercept", and listing the items in negative x territory as fractions of pie. Not so helpful...