This is one of the photos I used to answer, I’m going to send the second one
The function can use all values of x which means x is in between -inf and +inf. The first option expresses this.
Answer:
What do you need help with, comment
Y= 2/3x+1
or
y=2/3x+b
.....................
Answer:whatever the first number was times 2
Step-by-step explanation: