SOLUTION: What is the sketch of y = (-2)^x on a number plane?
My graphics calculators are showing different solutions or no solutions. -.-
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Exponents-negative-and-fractional
-> SOLUTION: What is the sketch of y = (-2)^x on a number plane?
My graphics calculators are showing different solutions or no solutions. -.-
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Question 228580: What is the sketch of y = (-2)^x on a number plane?
My graphics calculators are showing different solutions or no solutions. -.- Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! (-2)^x is not a continuous function.
(-2)^1 = -2
(-2)^2 = +4
(-2)^3 = -8
(-2)^3.5 = a complex number
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Graphing calculators use logs internally for exponential calculations, and a log of -2 causes them problems. You get erratic results, if any.
