a. The relation does represent a function, since it follows the definition of function, where a single element from y is assigned to an element from x.
b. The domain is the set of values of x, it means {-3,-1,0,1,3}
The range is the set of values of y, it means {5,7,9,11,13}
c. Yes, the relation is linear, it presents the same rate of change or slope across the entire domain, which is 2.
d. According to the table:
f(0)=9 (9 is the value of y when x is 0).
f(3)=13 (13 is the value of y when x is 2).
f(-1)=7 (-1 is the value of x when y is 7).
f(-3)=5 (-3 is the value of x when y is 5).
