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gjhfdfg

  • one year ago

How to find the intercepts of a function?

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  1. gjhfdfg
    • one year ago
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    I've been stuck on this problem for a while, x-intercepts of f(x) = \[\frac{ x+7 }{ x^2+5x-3 }\]

  2. campbell_st
    • one year ago
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    ok... to find the y intercept let x = 0 so y = -7/3 for the x intercept let y = 0 so x = -7 ( just look at the numerator) as 0 x anything = 0 the curve has vertical asymptotes... two and a hotizontal asymptote

  3. gjhfdfg
    • one year ago
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    How did you get -7?

  4. campbell_st
    • one year ago
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    well in a fraction the denominator can't be zero... only the numerator can be zero so to find the x intercept let y = 0 so you are solving x + 7 = 0 x = -7

  5. Fgcbear16
    • one year ago
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    |dw:1360353484729:dw|

  6. Fgcbear16
    • one year ago
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    the top will give you x-intercepts.

  7. gjhfdfg
    • one year ago
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    Got it,

  8. campbell_st
    • one year ago
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    glad to help

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