joyinfaithme joyinfaithme
  • 10-04-2019
  • Mathematics
contestada

what is the domain and range for the following function and its inverse f(x) = x^2 – 5

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ashash22
ashash22 ashash22
  • 10-04-2019

for parabolas, the domain will always be real numbers.

Ver imagen ashash22
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dhiab
dhiab dhiab
  • 10-04-2019

Answer:

Step-by-step explanation:

hello :

the domain is : D = R = =]-∞;+∞[ ( all numbers reals)

let : f(x) = y

y = x² - 5

x² = y+5

x exist : y + 5 ≥ 0

y ≥ - 5

so : the inverse is  [-5;+∞[

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