lokie2 lokie2
  • 11-01-2018
  • Mathematics
contestada

Help me : if f(x) = x^2 - 1 and g(x) = 2x - 3 , what is the domain if (f•g)(x)

Help me if fx x2 1 and gx 2x 3 what is the domain if fgx class=

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LammettHash
LammettHash LammettHash
  • 11-01-2018
[tex]f(x)=x^2-1[/tex]
[tex]g(x)=2x-3[/tex]

[tex]f\circ g(x)=f(g(x))=f(2x-3)=(2x-3)^2-1=4x^2-12x+8[/tex]

which is a polynomial, so the domain is [tex](-\infty,\infty)[/tex].
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sakirabrown04 sakirabrown04
  • 11-12-2020

Answer:

A

Step-by-step explanation:

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