26. The correct answer is (C). The graph of x
2 + y
2 = 4 is a circle of radius 2 with center at the origin. The
graph of y
2 = 4 consists of two horizontal lines, y = +2 and y = –2. These lines are tangent to the circle
at (0, 2) and (0, –2). There are two points in common.
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