1) Consider the function f(x) = 3 +8/x^-2

a. Where is f(x) going to have discontinuities and how do you know?


b. What is the y-intercept for f(x) and how do you know?

c.
What is the x-intercept for f(x) and how do you know?


d. What is the end behavior for f(x) and how do you know?

No links or anything like that.

Respuesta :

9514 1404 393

Answer:

  a. no discontinuities

  b. (0, 3)

  c. none

  d. f(x) → +∞ for |x| → ∞

Step-by-step explanation:

The function written in this problem statement is ...

  [tex]f(x)=3+\dfrac{8}{x^{-2}}=8x^2+3\qquad\text{a quadratic function}[/tex]

a) Polynomial functions of any degree have no discontinuities.

__

b) f(0) = 3. The y-intercept is (0, 3).

__

c) x² is always positive, so there are no x-intercepts

__

d) The leading coefficient of this even-degree polynomial is positive, so f(x) tends toward +∞ as |x| tends toward ∞.

Ver imagen sqdancefan