Question

Please help me out with this problem!

Answer 1

Option c.

Explanation:

The line y = x + 1 has a domain of x ≤ 1 ( filled circle).

The line x = -x + 2 has a domain x > 1 ( clear circle).

Answer 2

C

Explanation:

Both lines start and end on x = - 1

The top line has a positive slope and a y- intercept of 1. The end has a closed circle indicating that x can equal 1, thus

x + 1 for x ≤ 1

The lower line has a negative slope. The start of the line has an open circle indicating that x cannot equal 1, thus

- x + 2 for x > 1