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y 12 \ I 11 \ I 10 \ I 9 \ I 8 \ 7 \ I^I 6 ' I 5 \ 4 I^J \3 "( /., 1 X -2 f 2 = The graph of the quadratic function y f(x) is shown. What is the vertex of the graph? (0,−2)
Correct answer: C (parsed from the explanation — this source omits an answer key for this item)
Explanation
Choice C is correct. The vertex of the graph of a quadratic function in the xy-plane is the point at which the graph is either at its minimum or maximum 0,2 y-value. In the graph shown, the minimum y-value occurs at the point ^ h. 0,-2 Choice A is incorrect. The graph shown doesn’t pass through the point ^ h. 0,-3 Choice B is incorrect. The graph shown doesn’t pass through the point ^ h. 0,3 Choice D is incorrect. The graph shown doesn’t pass through the point ^ h. 39 SAT PRACTICE TEST #7 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 2
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