Is there anybody out there who can me with? ! ! i'm so desperate! , , !
for each relation, decide whether or not it is a function.

Hello!

A function is a relation where each x value (domain) can only be associated with one y value (range). It is okay for a y value to have multiple x values.

Looking at your relations, we can use this to determine what is a function.

Relation 1: each x value seems to be only associated with one range, so I'd say relation one is a function.

Relation 2: The domain of 3 is associated with both pen and lake, therefore, relation two is not a function.

Relation 3: There is only one point for each of the domains, so relation 3 is a function.

Relation 4: There also seems to only be one point for each one of the domains, so relation 4 is a function.

Hope this helps!

1. function

2. not a function

3. function

4. function

Step-by-step explanation:

the domain cannot be associated with more than one range. However, range can be assocaited with more than one domain

Hope I helped

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.