Graph the function.y = 
A. 
B. 
C. 
D. 
Answer: D
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane satisfying x2 + y2 ? 1; range: real numbers 0 ? z ? 1; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 1
B. Domain: all points in the xy-plane; range: real numbers 0 ? z ? 1; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 1
C. Domain: all points in the xy-plane satisfying x2 + y2 = 1; range: real numbers 0 ? z ? 1; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 1
D. Domain: all points in the xy-plane; range: all real numbers; level curves: circles with centers at 
Perform the indicated operations in the proper order.60 ÷ 15 (-3)
A. -0.75 B. 5 C. -12 D. -1.33
Simplify.
+ 
A. 
x2 + 
x + 
B. - 
x6 + 
C. - 
x2 + 
x + 
D. - 
x4 + 
x2 + 
Provide an appropriate response.Light with a wavelength of 0.00000054 meters is green in color. Write 0.00000054 in scientific notation.
A. 5.4 × 107 B. 5.4 × 10-8 C. 5.4 × 10-7 D. 5.4 × 10-6