Question

If limit of `f(x)=4` as `x->c`, what the limit of `3f(x)` as `x->c`?

Answer 1

`lim_(x rarr c) 3f(x) = 12`

Explanation:

Using the limit property:

`lim_(x rarr c) af(x) = a lim_(x rarr c) f(x)`

Then we have:

`lim_(x rarr c) 3f(x) = 3lim_(x rarr c) f(x)`
`" " = 3 xx 4`
`" " = 12`