Question

For b(x) = x + 1 and k(x) = 2x – 1, select the true statement.
Answer

-1/2 is excluded from the domain of (b / k)(x).

-1/2 is excluded from the domain of (k / b)(x).

-1 is excluded from the domain of (b / k)(x).

-1 is excluded from the domain of (k / b)(x).

Answer 1

helppp

Answer 2

Do you know function operations? If not:

\[(f / g)(x) = (\frac{f}{g})(x)\]

See if that helps.

Answer 3

no i dont know

Answer 4

Oh crap, sorry, I meant:
\[(f / g)(x) = \left(\frac{f(x)}{g(x)}\right)\]

Answer 5

so x+1/2x+1

Answer 6

Yes that's \((b / k)(x)\).

Answer 7

so is the answer B.

Answer 8

srry C right

Answer 9

The function in c is \((b / k)(x) \), so \(\frac{x+1}{2x-1}\).

Answer 10

But d is \((k / b)(x) = \frac{2x-1}{x+1}\), which does exclude \(-1\) in its domain.