Function Operations Answers

If and d(x) = x + 3, what is the domain of (cd)(x)?

If f(x) = 16x – 30 and g(x) = 14x – 6, for which value of x does (f – g)(x) = 0?

If f(x) = x2 – 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?

If p(x) = x2 – 1 and , which expression is equivalent to (p – q)(x)?

Which expression is equivalent to (f + g)(4)?

If r(x) = 3x – 1 and s(x) = 2x + 1, which expression is equivalent to ?

If f(x) = 3x2 + 1 and g(x) = 1 – x, what is the value of (f – g)(2)?

Which expression is equivalent to ?

The graphs of f(x) and g(x) are shown below. For what interval is the value of (f – g)(x) negative?

If f(x) = 3 – 2x and , what is the value of ?