Question

How do I do this question folks?

Answer 1

Correct answer: B

Explanation:

Syntax: in piecewise functions such as the one attached, the "if:" section shows the domain, or x-axis values which that function pertains to.

In the graph, you can see that the graph is defined for
`-3\leq x < 1` (not-including 1 because there is an open hole there, indicating it is not part of the domain), and
`2\leq x\leq 4`.

Now that we know the domain, we can attach it to the graphs that lie on those domains.

We see that the leftmost line appears to have a positive slope and a negative y-intercept, and that the second line should have a positive y-intercept and a negative slope.

At this point, you can just start crossing off answers that don't meet this criteria.

Cheers!!