Answer:
The set of positive integers and zero.
Step-by-step explanation:
[0 1 2 3 4 5 6 7 8 9......∞)
Answer:
-1/2
Step-by-step explanation:
the slope of the first line is 2
to get the line perpendicular, you swap the numerator and denominator, then if positive make negative and the other way around
Answer:
On the photo it shows all the steps you need. Next time you should make the multiplying symbol to this * instead it'll be easier to understand because if it was a or a multiply symbol
No I belive they don’t have to be