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Which of these statements correctly describes the function y=9x−7?\ .............A It is a linear function, and its graph is a straight line. .............B It is a linear function, but its graph is not a straight line. ...............C It is not a linear function, but its graph is a straight line. ..............D It is not a linear function, and its graph is not a straight line.

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Answer: A

Step-by-step explanation: There's a constant growth (slope) of y by 9 for every 1 value of x. This makes it a linear function. A linear function, by default, makes a straight line when graphed. (Unless its domain is restricted but this doesn't apply to your question.

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