coordinate plane

Question

You move up 1 unit and down 7 units. You end at (-4, -3). Where did you start?

Answer 1

start at (-4,3) move up 1 to (-4,4), then down 7 to (-4,-3)

move up means add 1 to the y coordinate

move down 7 means subtract 7 from the y coordinate

net effect of up 1 and down 7 is move down 7-1 = 6

so subtract 6 from 3 to get -3

the x coordinate stays the same