WEBVTT
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In this function machine, we put 𝑥 in and get 𝑦 out.
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Which of these equations describes the rule?
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𝑦 equals 𝑥 plus five, 𝑦 equals 𝑥 plus eight, 𝑦 equals 𝑥 times five, 𝑦 equals 𝑥 times eight, or 𝑦 equals 𝑥 minus five.
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This function table has given us a very important clue.
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In this function machine or in this function table, you multiply 𝑥 by five and that gives you 𝑦.
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For example, if we have an 𝑥-value of two, we multiply two times five and that gives us our 𝑦-value of 10.
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We are looking for an equation that says 𝑦 equals 𝑥 times five.
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Only one of the answer choices — only one of the equations — describes the rule correctly 𝑦 equals 𝑥 times five.