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