Question

Show that f is a Function and g is not a function

Answer 1

\[ f(x)=\left\{\begin{matrix}
x^2 &0\le x\le3 \\
3x & 3 \le x\le10
\end{matrix}\right. \]

Answer 2

\[ g(x)=\left\{\begin{matrix}
x^2 &0\le x\le2 \\
3x & 2 \le x\le10
\end{matrix}\right. \]

Answer 3

I think we need to look at x=3 for each function

Answer 4

...or x=2 for the other

Answer 5

So at x=3 f(x)=3^2 = 9 ?

Answer 6

yeah limits are different for second one..

Answer 7

x=2
and
x=3*2=6

Answer 8

ooops