larryhelmick5 larryhelmick5
  • 16-08-2017
  • Mathematics
contestada

If x and y are both negative when is x-y positive

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saltykatz
saltykatz saltykatz
  • 16-08-2017
When multiplying two negative numbers the answer is positive
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 16-08-2017
hmm

let's try some numbers

we have 3 scenarios
x>y
x=y
x<y

x>y
x=-1 and y=-2
x-y=-1-(-2)=-1+2=1
it's positive when x>y

x=y
x=-1, y=-1
-1-(-1)=-1+1=0
nope

x<y
x=-2 and y=-1
-2-(-1)=-2+1=-1
nope


x-y is positive when 0>x>y
Answer Link

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