Question

which graph best represents a quadratic function that has only one zero?A) Graph AB) Graph BC) Graph C D) Graph D

Answer 1

By definition, a zero of a function f(x) is a value x_0 such that f(x_0) = 0.

We must find the graph of a function with only one zero, i.e. the graph of the function crosses/touches the x-axis only once.

We see that graph B touches the x-axis at only one point.

Answer

B) Graph B