- #1
illjazz
- 59
- 0
Homework Statement
For what value of the constant c is the function f continuous on [tex](-\infty,\infty)[/tex]
[tex]
f(x)=\left\{\begin{array}{cc}cx^2+2x,&\mbox{ if }
x<2\\x^3-cx, & \mbox{ if } x\geq2\end{array}\right.
[/tex]
Homework Equations
No idea :(
The Attempt at a Solution
I tried looking at the examples preceding this section's problem section but could not find anything quite resembling this. There are examples for finding where f would be continuous at whatever values at x.. but not for a constant c, which is different. Pointers would be appreciated.