Posted by nida jabeen on .
Find the point of discontinuing of the given function: 2 Marks
f (x) = 3x + 1
X27x+12

calculus 
MathMate,
I assume it is
f (x)
3x + 1
=
x²7x+12
Factor the denominator into factors. Anytime the denominator becomes zero, there will be a discontinuity in the function, since the function at these points will be undefined (division by zero is not allowed).
The denominator factors to (x3)(x4) and therefore will have 2 positive roots.
Can you find them?