Use the graph to determine the domain and range of the function.

A. domain: all real numbers
range: {y|y ? 0}
B. domain: all real numbers
range: all real numbers
C. domain: {x|x ? 0}
range: {y|y ? 0}
D. domain: {x|x ? 0}
range: all real numbers

Answer: D

Mathematics

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Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = 2(y - 2)2 - 2

A.

opens left; vertex (2, 2);
axis of symmetry y = 2
B.

opens right; vertex (-2, 2);
axis of symmetry y = 2
C.

opens right; vertex (2, 2);
axis of symmetry y = 2
D.

opens right; vertex (-2, -2);
axis of symmetry y = -2