Answer:
the correct answer is A
Step-by-step explanation:
1) vertical-Line test
2)y=x
3)x
4)domain
You might be thinking of "distribution" or "distributive property"
Example:
2(3x+5) = 2*3x+2*5 = 6x+10
I multiplied the outer 2 by each term inside (3x and 5)
