Problems 115 124. The purpose of these problems is to keep the material fresh in your

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Problems 115 – 124. 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.

Find the zeros of the quadratic function f (x) = 3x2 + 5x + 1.

What are the x -intercepts, if any, of the graph of the function? Find the vertex. Is it a maximum or minimum? Is the graph concave up or concave down?

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