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Algebra I STAAR 2022: Question 4: Y as a Function of X
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In this video, I will explain how to determine if a graph represents y as a function of x.
Notes: To determine if a graph is a function, you need to perform the Vertical Line Test. First, you draw a vertical line somewhere on the graph. Second, you count how many times the vertical line touches your graph - the x-axis does not count. If the line touches only one time, the graph is a function. If the line touches two or more times, then it is NOT a function.
How should you study? Watch the videos, follow along with me using your calculator, copy the notes at the end.
Notes: To determine if a graph is a function, you need to perform the Vertical Line Test. First, you draw a vertical line somewhere on the graph. Second, you count how many times the vertical line touches your graph - the x-axis does not count. If the line touches only one time, the graph is a function. If the line touches two or more times, then it is NOT a function.
How should you study? Watch the videos, follow along with me using your calculator, copy the notes at the end.
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