This lesson teaches how to determine when a slope is zero and undefined on graphs. By finding the change in X and Y coordinates and dividing them, we can calculate the slope. If the numerator is 0, then the slope is 0. However, if the denominator is 0, then the slope is undefined. It's important to understand that dividing by 0 gives an undefined value.
Given three graphs determine when the slope is zero and undefined
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Questions answered by this video:
How do I find the slope of a line when I am given two points on the line?
When does a line have a slope of 0?
When does a line have an undefined slope?
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In this lesson, the teacher does a few examples of finding the slope of a line when you are given two points on a line. He also talks briefly about a line with a slope of 0 and a line with an undefined slope.