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An illustration shows a coordinate plane with four quadrants. The x and y axes range from negative 6 to 6 in increments of 1. A semicircle is graphed on the plane. The semicircle passes through points plotted at coordinates left parenthesis negative 5 comma 0 right parenthesis, left parenthesis 0 comma 5 right parenthesis, and left parenthesis 5 comma 0 right parenthesis.
The graph of a relation is given. Apply the vertical line test to determine if this relation is a function. Enter 1 if the relation is a function. Enter 2 if the relation is not a function.
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GPT-5 mini
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1
The graph is the top half of a circle (y = sqrt(25 - x^2)), so each x in [-5,5] gives exactly one y; vertical lines intersect the curve at most once.
The graph is the top half of a circle (y = sqrt(25 - x^2)), so each x in [-5,5] gives exactly one y; vertical lines intersect the curve at most once.
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