Algeb! :D II - HW1.

I.

• f(x) = -x - 2
• g(x) = x^2 + 4x - 7
• m(x) = 4x - 3
• h(x) = (x + 3) / (2x + 5)
• r(x) = squareroot(3x - 4)

1. (f + g)(x)
2. (f - g)(x)
3. (f * m)(x)
4. (m / h)(x)
5. (f / r)(x)
6. f( g(x) )
7. m( h(x) )
8. g( f(x) )
9. h( h(x) )
10. g( r(x) )

II.

1. If f(x) = 2x - 5 and f( g(x) ) = 5x - 3, then g(x) = ?
2. If g(x) = (x+2) / (x - 1) and f( g(x) ) = -6x + 5, then f(x) = ?