Can you change a denominator
The denominator will change for some operations and not for others.
Multiply the numerator and the denominator by the same number and you can change it to whatever number you need.
The answer depends on what w represents. If w is the denominator of the rational function then as w gets close to zero, the rational function tends toward plus or minus infinity - depending on the signs of the dominant terms in the numerator and denominator.
No.
The same way as with a positive denominator. The difference is, you change the sign of the numerator.
No.
Divide the numerator by the denominator.
you divide the denominator by the numerator!
numerator
Divide the numerator by the denominator
You divide the numerator by the denominator.
Divide the denominator into the numerator.