(-1.5,3) Y=3 which is up 3 and a horizontal line and 2x+y=0 can be written as y=-2x so in order to get -1.5 you have to make y=3 cause y=3 and when you do that it should look like 3/-2=-2/-2x so x=-1.5
The sum of the first n natural numbers and 0=
n*(n+1)/2
Answer:
B Step-by-step explanation:
A. the answer is the first one
