Solve for y. 3y – 12 = –6 A. –54 B. 2 C. 18 D. –6
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
Given
Required
Determine which is a function
A relation is divided into 2; (x,y)
Where x represents the range and y stands for the domain
For a relation to be a function, the x column must be unique; in other words, there must be only one occurrence of x
Testing each of the given options
A.
Start by splitting the relation into x and y columns
Notice that the third and fourth relation has the same x value of 1;
<em>Hence, this is not a function</em>
B.
Start by splitting the relation into x and y columns
Notice that all relations has the same x value of -2;
<em>Hence, this is also not a function</em>
C.
Start by splitting the relation into x and y columns
Notice that the first and second relation has the same x value of 0 and the third and fourth relation has the same x value of 1;
<em>Hence, this is also not a function</em>
D.
Start by splitting the relation into x and y columns
Notice that relation has the unique x values of 8, 4, 0 and -15
<em>Hence, this relation is a function</em>