Question: Problems 7079. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for later sections,

Problems 70–79. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for later sections, a final exam, or subsequent courses such as calculus.

If f (x) = ax² − 2x + 5 and a < 0, in which quadrant is the vertex located? How many x -intercepts does the graph of f have?

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