vlone888 vlone888
  • 01-10-2020
  • Mathematics
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In which region of its domain is.the function y=x^2-4 decreasing

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michals7241
michals7241 michals7241
  • 01-10-2020

Answer:

[tex] {b}^{2} - 4ac = 0 - 4 \times 1 \times ( - 4) = 16[/tex]

[tex] \sqrt{16} = 4[/tex]

[tex] \frac{ - b}{2a} = \frac{0}{2} = 0[/tex]

[tex] \frac{ - 4}{4} = - 1[/tex]

it is decreasing from negative infinity to 0

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