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the number that has the minus sign in front of it is negative and the normal number is positive example: negative: -9 positive: 9
Large side is negative
Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,
If both integers are positive or both negative then the quotient is positive. If they are one of each then the quotient is negative.
A slope is positive or negative based on if the line goes from the upper left corner down to the lower right corner or right to left. Left is positive right is negative.