What are the characteristics of the quadratic function f(x) = x^2? Identify the vertex, axis of symmetry, and whether it opens upward or downward. Does it have a maximum or minimum value? Does the graph intersect the x-axis or y-axis?
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What is the characteristic of a constant function f(x)=c?
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What is the value of the sine ratio of an angle if the opposite side is 8 cm and the hypotenuse is 10 cm?