Do Now 9/23 The opposite of 4 is _. The additive inverse of -6 is_. If d = 7 and a = -3… -d = -a = -(d a) = a a a =

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Presentation transcript:

Do Now 9/23 The opposite of 4 is _________. The additive inverse of -6 is_________. If d = 7 and a = -3… -d = -a = -(d a) = a a a =

Do Now Quiz Corrections +, -, or 0 Whiteboard Review Packet Homework: Finish page 1 of review packet.

Positive, Negative, or 0? Whiteboard Activity

Is it Positive, Negative or 0? Question: C Answer: C is positive because it’s on the right side of zero.

Is it Positive, Negative or 0? Question: D Answer: D is negative because it’s on the left of zero.

Is it Positive, Negative or 0? Question: C + 2 Answer: C + 2 is positive because a positive plus another positive number is positive.

Is it Positive, Negative or 0? Question: C - 2 Answer: Positive because C is greater than 2.

Is it Positive, Negative or 0? Question: 2 - C Answer: Negative, because a smaller number minus a bigger number will be negative.

Is it Positive, Negative or 0? Question: C - C Answer: Zero. Any number minus itself is zero.

Is it Positive, Negative or 0? Question: D ÷ C Answer: Negative. A negative divided by a positive is a negative.

Is it Positive, Negative or 0? Question: d c Answer: Negative. A negative multiplied by a positive is a negative.

Is it Positive, Negative or 0? Question: d Answer: Positive. A negative times a negative is a positive.

Is it Positive, Negative or 0? Question: -(d d) Answer: Negative. A negative negative is positive. Then the opposite of positive is negative.

Is it Positive, Negative or 0? Question: -c Answer: Negative. Because the opposite of a positive is a negative.

Is it Positive, Negative or 0? Question: -d Answer: Positive. Because the opposite of a negative is a positive.

Is it Positive, Negative or 0? Question: c-d Answer: Positive. Because we are adding the opposite.

Is it Positive, Negative or 0? Question: |d-c| Answer: Positive. The absolute value is always positive.

Is it Positive, Negative or 0? Question: d - d Answer: Zero. Any number minus itself is zero.