cely987 cely987
  • 25-06-2022
  • Mathematics
contestada

Find the x- and y-intercepts of the parabola y=x^2+4x−6

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Medunno13
Medunno13 Medunno13
  • 28-06-2022

The x-intercepts are when y=0, so:

[tex]x^2 + 4x-6=0\\\\x=\frac{-4 \pm \sqrt{4^{2}-4(1)(-6)}}{2}\\\\x=\frac{-4 \pm \sqrt{40}}{2}\\\\x=-2 \pm \sqrt{10}[/tex]

So, the x-intercepts are at [tex]\boxed{(-2 \pm \sqrt{10}, 0)}[/tex]

The y-intercept is when x=0, so [tex]y=0^{2}+4(0)-6[/tex], and thus the y-intercept is at (0, -6).

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