Mathematics

Eleanor Wells

21 May, 02:04

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