Question

Given the information on the graph, answer the following questions, The graph is below.. :
Explain why f represents the graph of a function.
Use the graph to find a reasonable estimate of f (- 2).
What is the domain of f?
What is the range of f?

Answer 1

F is a function because the vertical line cuts it only once, this means that every x has only one y.

f(-2) = 2

Domain: The x-axis, in this case it is from -2 to 2
Range: The y-axis, in this case it is from -1 to 2.

Good luck. Hope I helped.

Answer 2

Thank you! :-)