morganntheo3168 morganntheo3168
  • 04-07-2020
  • Mathematics
contestada

Choose the inverse of y=x^2-10

Respuesta :

afreash3 afreash3
  • 04-07-2020

Answer:

x = 5 + sqrt(y+25), for x>=5

x = 5 - sqrt(y+25), for x<=5

Step-by-step explanation:

y = x^2 - 10x + 25 - 25

y = (x-5)^2 - 25

y+25 = (x-5)^2

x-5 = +/-sqrt(y+25)

And you get TWO inverses:

x = 5 + sqrt(y+25), for x>=5

x = 5 - sqrt(y+25), for x<=5

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