The linear form of that equation is y=1/4x+2. Your y-intercept should be 2 and the slope is 1/4.
It’s the second one. The symbol means “less than or equal to,” so it would be a closed circle with the arrow pointing to everything less than -1
The GCF is only 12 because 16 can't multiply a number that gives you 48 only 12.
Not sure sorry I’m not good at math need help with something else..