math

Find the x-intercepts of the polynomial y = x^2 - 4x + 3

I'm not sure how to approach this -- do I first factor it and then my x intercepts are (#, 0)?

So, for example, factored would be (x - 3)(x - 1)

I set those equal to 0 so my x intercepts would be (3, 0) and (1, 0)

Would that be correct or is there another way to do it?

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  1. correct, at the x-intercept, the value of y = 0

    other ways:
    you could graph it and verify those answers
    you could use the quadratic formula

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    Reiny
  2. I know how to put the numbers into the quadratic equation, but then what?

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