H.W: Find fa , fw, fx and fy if f(x, y)= xr + y+ xy
Below are six functions, as well as six contour maps. Determine which function matches each contour map.
Which contour map matches f(x, y) = vx?
?
Which contour map matches f(x, y) = Vx2 + y2?
?
Which contour map matches f(x, y) = x² – y?
?
Which contour map matches f(x, y) = 6 – 2x – 3y?
?
Which contour map matches f(x, y) = 1 – |x| – |y|?
?
Which contour map matches f(x, y) = 4 – x² – y2?
?
А
B
D
F
1. Determine whether each of the following equations defines y as a function of x.
a) x² + y² + 3x=0
b) x-5y=9
c) y = |x-1|
Precalculus Enhanced with Graphing Utilities (7th Edition)
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