State the largest digit that can occupy a decimal place value column and explain your answer. Write at least 1 sentence in your response.

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What is the greatest place value of a decimal?
In any number, whether it's a decimal fraction or a whole integer, the non-zero digit farthest to the left is the one with the greatest place value. In a decimal fraction, this digit is the first non-zero one to the right of the decimal, and in a whole integer, it's the first digit in the number series.23

Y=-2x-6 is the answer