Question

Given the graph, find the following:

Answer 1

Would you like to make an attempt first ??

Answer 2

Haven't learned it yet. Just doing it before the actual lesson. I'm ready to learn!

Answer 3

The graph is just a set of points of type (x,f(x))

So to find f(0), look for a point with x-coordinate 0. Or in other words, find where does the line x=0 intersects with the graph. You'll find a point (0,-5). Hence f(0) = -5

Now try to solve the rest.
Note that an empty circle is not a part of the graph, but a solid circle is