Question

Which is a zero of the function f(x)= x^ - 3x - 4

a) -4
b) -1
c) 0
d) 1

Answer 1

B) -1

Explanation:

`f(x)=x^2-3x-4\\0=x^2-3x-4\\0=(x-4)(x+1)\\x=4,-1`

Therefore, B is the best choice