Question

14. (05.06 MC)
What value is a discontinuity of

Answer 1

Zeros of numerator

• x²+3x-4=0
• x²+4x-x-4=0
• x(x+4)-1(x+4)=0
• (x-1)(x+4)=0
• x=1,-4

Zeros of denominator

• x²+x-12=0
• x²+4x-3x-12=0
• (x+4)(x-3)=0
• x=3,-4

Option A