Perform the indicated operation(s). Simplify if possible.
+ 
A. 
B. 
C. 
D. 4x - 3
Answer: A
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Evaluate the expression x - y for the given values of the variables.x = -28, y = 70
A. -42 B. 98 C. -98 D. 42
Translate the word phrase into an algebraic expression.$147 less the cost x
A. 147x B. 147 - x C. 147 D. x + 147
Determine whether the given equation is a rational function.f(x) = 
A. No B. Yes
For the parametric equations given, use a graphing calculator to generate the curve over the stated interval for the parameter t. Use the window specified. Also, find a rectangular equation for the curve.x = 2t - 1, y = t2 + 4, for t in [-4, 4]
A. 
The rectangular equation for the curve is
y = x2 + 1, for x in [-2, 2].
B. 
The rectangular equation for the curve is
y = 
x2 + 
x + 
, for x in [-9, 7].
C. 
The rectangular equation for the curve is
y = - 
x + 30, for x in [-6, 4].
D. 
The rectangular equation for the curve is
y = 
x2 + 1, for x in [-6, 4].