Find the value of the expression.- 
- 
A. 23
B. -19
C. 19
D. -23
Answer: D
Mathematics
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Write an equation of the line.
A. y = 
x
B. y = - 
x
C. y = - 
x
D. y = 
x
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Determine whether the equation defines y as a function of x. y2 + x = 8
A. function B. not a function
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 
, y = 2t + 5
A. y = 2x2 + 5
B. y = 2x2 - 5
C. y = 2
- 5, x ? 0
D. y = 2
+ 5, x ? 0
Mathematics
Plot the complex number in the complex plane.6 - i 
A. 
B. 
C. 
D. 
Mathematics