Hello, please consider the following.
We know the following, right ?

So, here, it gives.

Do not hesitate if you need further explanation.
Answer:
C
Step-by-step explanation:
Only C is a polynomial function. It is recognizable as such by the positive, integer power x^4. The others have negative powers, which eliminates them.
La estimacion de Rita tiene un margen de error de 3% pero si lo vemos del modo de que esta redondeando la respuesta es correcta plisssss dame respuesta mas inteligente la necesito para subir de nivel
Answer:
A and D
Step-by-step explanation:
the slope is the number in front of the x, as in the formula y = a*x + b
the linear equations that have a negative value for a have a negative slope