The x -intercepts (also known as zeros or roots ) of a function are points where the graph intersects the x -axis. Rational functions can have zero, one, or multiple x -intercepts. For any function, the x -intercepts are x -values for which the function has a value of zero: f(x)=0 f ( x ) = 0 .
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The x -intercepts (also known as zeros or roots ) of a function are points where the graph intersects the x -axis. Rational functions can have zero, one, or multiple x -intercepts. For any function, the x -intercepts are x -values for which the function has a value of zero: f(x)=0 f ( x ) = 0 .