The weights and heights of six mathematics students are given in the following table: Weight (in pounds) Height (in centimeters) 165 172 123 157 212 183 175 178 165 163 147 167 State whether weight is a function of height for the six students and explain.

Weight is a function of height if every height corresponds to exactly one weight. The six heights are 172, 157, 183, 178, 163, and 167 centimeters; each appears once and has one corresponding weight. Therefore, weight is a function of height, as choice c states.

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