Question

Can somebody help me and explain how to do these?1?

Answer 1

1. What is the discontinuity of the function \[f(x)=\frac{ x^2-4x-12 }{ x+2 }\]
A. (-6, 0)
B. (6, 0)
C. (-2, -8)
D. (2, -4)

3. What is the discontinuity and zero of the function \[f(x)=\frac{ 3x^2+x-4 }{ x-1 }\]
A. Discontinuity at (-1, 1), zero at \[(\frac{ 4 }{ 3 },0)\]
B. Discontinuity at (-1, 1), zero at \[(-\frac{ 4 }{ 3 },0)\]
C. Discontinuity at (1, 7), zero at \[(\frac{ 4 }{ 3 },0)\]
D. Discontinuity at (1, 7), zero at \[(-\frac{ 4 }{ 3 },0)\]

* I know the zero is at \[(-\frac{ 4 }{ 3 },0)\]

Answer 2

@phi Can you help me please?

Answer 3

division by 0 is undefined
what value of x results in this expression being divided by 0?

Answer 4

2