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# -5 or using the interval notation [-5, ) b) Well, with fractions, we know that we cant divide by zero but anything else is just fine. So...

-5 or using the interval notation [-5, ) b) Well, with fractions, we know that we can"t divide by zero but anything else is just fine. So we"re only worried about where the denominator is 0. We write this as x2 - x = 0, or x(x - 1) = 0. This is easy to solve and find that x = 0 or x = 1. We can write this as either {x|x = 0, x = 1}, all real numbers except 0 and 1, or (-, 0) (0, 1) How can we write functions?