Question

Without using technology, describe the end behavior of f(x) = −3x38 + 7x3 − 12x + 13.

Answer 1

Second option: down on the left, down on the right.

Clearly when x is bigger than one the term -x^38 will dominate the result.

When absolute value of x grows, x^38 becomes a larger positive number and - x^38 a larger negative number. Then both ends of the function tend to negative infinity.

Answer 2

Answer:

Down on the left, down on the right

Step-by-step explanation:

The degree is even and the leading coefficent is negative,hence the answer "Down on the left, down on the right"