DOMAIN: Find the domain of the function. In the space provided, type the answer without any spaces between the letters, numbers, or symbols.

Question

f(x) = x² + 8x − 1

Answer 1

f(x) = x² + 8x − 1

The domain comprises the value/s for x for all real values of y

y = x^2 + 8x - 1

If y = 0, then, x = .1231056256 x = -8.1231055626

If y = 1, then x = .2426406871 x = -8.242640687

If y = -1, then x = 0 x = -8

And so forth. I used the solution to the quadratic programmed on my calculator...

Answer 2

The domain for the function is valid values for x.

In this case, it is ALL values of x, from -infinity, through 0 to +infinity