Use the graph to find the intervals on which it is increasing, decreasing, or constant.
A. Decreasing on (-?, ?)
B. Increasing on (-?, 0); decreasing on (0, ?)
C. Decreasing on (-?, 0); increasing on (0, ?)
D. Increasing on (-?, ?)
Answer: B
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Find the indicated intercept(s) of the graph of the function.y-intercept of f(x) = 
A. 
B. (0, 4)
C. (0, 4)
D. 
Eliminate the parameter to obtain a Cartesian equation of the curve.x = 7 cos t, y = 7 sin t, 0 ? t ? 2?
A. x2 - y2 = 7, -7 ? x ?7 B. x2 - y2 = 49, -7 ? x ?7 C. x2 + y2 = 7, -7 ? x ?7 D. x2 + y2 = 49, -7 ? x ?7
Find the domain of f(x).f(x) = ?4x + 7?
A. {x? x is a real number and x ? -7}
B. ? the set of all real numbers
C. {x? x is a real number and x ? -0.5714286}
D. {x? x is a real number and x ? - 
}
Evaluate the expression, given x = -2, y = 3, and a = -4.-x2 - (5y2 - 7x)
A. 55 B. -63 C. -55 D. -27