Evaluate the derivative of the given function at the given point.y = x2 - x; (2, 2)
A. 6
B. 4
C. 3
D. 2
Answer: C
Mathematics
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Write the mixed number as an improper fraction.19
A. 
B. 13
C. 32
D. 247
Mathematics
Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.f(x) = -4x2 + 4x
A. minimum; 
B. minimum; 
C. maximum; 
D. maximum; 
Mathematics
Evaluate the expression.x2 - 4yz for x = -5, y = 2, and z = 4
A. -7 B. -3 C. -17 D. -13
Mathematics
Find an equation for the line with the given properties.Parallel to the line 9x + 5y = 68; containing the point (7, 9)
A. 5x + 9y = 9 B. 9x + 5y = 108 C. 9x - 5y = 108 D. 7x + 5y = 68
Mathematics