Message Boards Message Boards

GROUPS:
Mathematica Algebra
Jen Pancaldo

How do you find the y intercepts and where the function is undefined?

Jen Pancaldo
Posted 10 years ago
12804 Views
|
2 Replies
|
0 Total Likes
|
The function is f(x)= 6x^2 -9x-6/ 2x^2-x-6
I found the x intercepts but how do you find the y intercepts and where the function is undefined without using just the graph?
POSTED BY: Jen Pancaldo
2 Replies
Sort By:
Probably the function was intended to be
f[x_] := (6 x^2 - 9 x - 6)/(2 x^2 - x - 6)
POSTED BY: Ilian Gachevski
Diego Zviovich
Diego Zviovich
Posted 10 years ago
Y intercepts
f[x_] := 6 x^2 - 9 x - 6/2 x^2 - x - 6
Solve[f[x] == 0, x]
(*{{x -> 1/3 (5 - Sqrt[43])}, {x -> 1/3 (5 + Sqrt[43])}}*)


For the indefinites then

Solve[(1/f[x]) == 0, x]
(*{}*)


Checking

Simplify[f[x]]
(*-6 - 10 x + 3 x^2*)
POSTED BY: Diego Zviovich
Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Tag limit exceeded
Note: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.
Reply Preview
Attachments
Remove
or Discard

Group Abstract Group Abstract