Part 1:
 For this case we first define the variables:
 x: independent variable (horizontal axis)
 y: dependent variable (vertical axis)
 We have then that the next ordered pair belongs to the shaded region: 
 Answer:
 Answer:
 C (-1, 1)
 Part 2:
 For this case we have the following linear function: 

 We must find an ordered pair of the form (x, y) that satisfies the equation.
 We have then:
 For (-1, -5):
 Substituting in the equation we have: 

 Rewriting: 

 Both sides of the equation are equal and therefore the point belongs to the function. 
Answer:
 A (-1 -5)