What is the midpoint of the line segment with the endpoints J(–9, –4) and K(7, 8)?

Use the midpoint formula: average the x-coordinates and average the y-coordinates. For J(–9, –4) and K(7, 8), the midpoint is ((–9 + 7)/2, (–4 + 8)/2) = (–1, 2). Therefore, the midpoint is choice C, (–1, 2).

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