Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.x2 + 2xy + y2 - 8x + 8y = 0
A. x = 
(x' - y'); y = 
(x' + y')
B. x = 
x' - 
y'; y = 
x' + 
y'
C. x = -y'; y = x'
D. x = 
x' - 
y'; y = 
x' + 
y'
Answer: A
Mathematics
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Multiply.
2
A. x2 - 
x - 
B. x2 - 
x + 
C. x2 - 
x + 
D. x2 + 
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 
|x|
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 
Mathematics
Write an equivalent expression without negative exponents.
A. 
B. - 
C. - 
D. 
Mathematics