Find fx, fy, and fz.f(x, y, z) = x2y + y2z + xz2
A. fx = 2xy + z2; fy = x2 + yz; fz = y2 + xz
B. fx = 2xy; fy = x2 + 2yz; fz = y2 + 2xz
C. fx = 2xy + z2; fy = x2 + 2yz; fz = y2 + 2xz
D. fx = 2y + z2; fy = x2 + 2z; fz = y2 + 2x
Answer: C
Mathematics
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Make the graph of 
. Use a horizontal span of -5 to 5.
What will be an ideal response?
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Integrate the function f over the given region.f(x, y) = 
over the square 4 ? x ? 6, 4 ? y ? 6
A. ln 
B. 
2
C. 
2
D. 
Mathematics
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.y + 9 = (x + 3)2
A. vertex: (3, 9)
axis of symmetry: x = 3
B. vertex: (- 3, - 9)
axis of symmetry: x = - 3
C. vertex: (- 3, 9)
axis of symmetry: x = - 3
D. vertex: (3, - 9)
axis of symmetry: x = 3
Mathematics
Evaluate the expression for the given value.7x2 when x = 5
A. 245 B. 175 C. 70 D. 1225
Mathematics