Question

What value must be defined for to remove the discontinuity of this function at ?

Answer 1

8

Explanation:

I have the plato platform

Answer 2

Option D. 8

Explanation:

we have

`f(x)=(x^(2)-16 )/(x-4)`

Remember that

`x^(2)-16 =(x+4)(x-4)`

substitute

`f(x)=((x+4)(x-4))/(x-4)`

Remove the discontinuity at x=4

Simplify

`f(x)=(x+4)`

so

Find the value of f(4)

For x=4

`f(4)=(4+4)=8`