Algebra 2b u2 l6 functions operations practice #1-3
let f(x)=2x^2+x-3 and g(x)=x-1. perfo...
Mathematics, 29.01.2020 02:43 brianamcorchadp
Algebra 2b u2 l6 functions operations practice #1-3
let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated operation, then find the domain
1 (f-g)*(x)
a x^2-4; domain: positive real numbers
b 2x^2-4; domain: all real numbers
c x^2-4; domain: all real numbers
d 2x^2-2; domain: all real numbers
2 (f*g)(x)
a 2x^3-x^2-4x+3; domain: all real numbers
b 2x^3+x^2-3x; domain: all real numbers
c 2x^3+x^2+4x-3; domain: negative real numbers
d 2x^2+x-3x+3; domain: positive real numbers
3 f/g(x)
a 1/2x+3; domain: all real numbers except x=-3/2
b 2x+3; domain: all real numbers
c 2x^2+3; domain: all real numbers
d 2x+3; domain: all real numbers except x=1
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