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 Depdendent Variable

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 Dependent Variable

 Number of inequalities to solve: 23456789
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# Powers

Powers, or exponents begin as shorthand notation for repeated multiplication. For example, we write:

Here, 2 is called the base and 5 is called the power or exponent. We describe 2 5 as meaning “2 raised to the power 5” here. The exponent applies only to the quantity to its immediate lower left. Be careful indicating powers of negative numbers. Brackets must be used:

(-3) 4 = (-3) Ã— (-3) Ã— (-3) Ã— (-3) = + 81

But, without the brackets

-3 4 =-3 Ã— 3 Ã— 3 Ã— 3 = - 81

Without the brackets, the power of 4 in -3 4 applies only to the 3, and does not include the minus sign.