s) The monthly income from car sales, "M" (in thousands of dollars) at a local dealership is related to the amount "x" that the business spends on monthly advertising (in thousands of dollars) by the function: M(x) = 230x x + 15 a) What income will result from an ad campaign of $4200? Answer with a sentence, like "Spending $4200 in ads will result in an income of b) What value of "x" results in this function being undefined? c) Will the function ever be undefined in the context of the problem? EXPLAIN "x" = 11

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