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anonymous

  • 5 years ago

What is the general rule for finding the x-intercept of a function? Is it to factor and set equal to zero?

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  1. anonymous
    • 5 years ago
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    For example \[\left| 1divx \right|\]

  2. anonymous
    • 5 years ago
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    lemme try that again... f(x) = \[|1/x |\]

  3. anonymous
    • 5 years ago
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    sorry toally looking at the wong problem For ex. f(x) = \[x ^{2} - x -2\]

  4. radar
    • 5 years ago
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    The x intercepts are points where y=0 (point is on x axis. y f(x)=x^2-x-2 0=x^2-x-2 or as you suggested factor, (x-2)(x+1)=0 if this is true then one or both of the factors equal 0. This results in x=2 and x=-2

  5. anonymous
    • 5 years ago
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    thanks!

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