What is the zero of a function?

Step-by-step explanation:

A "zero of a function" is an input (x-) value at which the function becomes zero.  We also use the words "root" and "solution" to denote the same thing.

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step-by-step explanation:

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !