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NEGATIVE NUMBERS RAISED TO POWERS. When a NEGATIVE number is raised to an ODD POWER: The sign of the power is negative. EX: (-1)x (-1)x ▪▪▪ x (-1) = (-1) 13 13 times ODD #. NEGATIVE NUMBERS RAISED TO POWERS.
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NEGATIVE NUMBERS RAISED TO POWERS • When a NEGATIVE number is raised to an ODD POWER: The sign of the power is negative. EX: (-1)x (-1)x ▪▪▪ x (-1) = (-1) 13 13 times ODD #
NEGATIVE NUMBERS RAISED TO POWERS • When a NEGATIVE number is raised to a POSITIVE POWER: • The sign is positive. EX: (-1)x (-1)x ▪▪▪ x (-1) = 1 12 12 times EVEN #
SEE WHAT HAPPENS… • (-2)x (-2)x ▪▪▪ x(-2) = ____________ 4 times (-6)x (-6) x▪▪▪ x(-6) = ____________ 3 times
PRACTICE: • (-4)x (-4) ▪▪▪ (-4) = ___________ 3 times (-56)x (-56) ▪▪▪ (-56) = _________ 8 times
DO NOW WITH A FRIEND & DISCUSS: In your do now notebook • Is it necessary to do all of the calculations to determine the sign of the product for the problem below? (-5)x (-5)x▪▪▪x(-5) = (-5)95 Why or Why not?
Is it necessary to do all of the calculations to determine the sign of the product for the problem below? (-1.8)x (-1.8)x▪▪▪x(-1.8) = (1.8)60 Why or Why not?
EXIT TICKET Josie says that (-15)X (-15)x▪▪▪x(-15) = -15 6 • Is she correct? • How do you know?