Multiply.-8xy7(10xy6 + 5y5 + 5)
A. -80xy6 - 40y5 - 40
B. -80x2y13 - 40xy12 - 40xy7
C. -80x2y13 - 40xy12
D. -80x2y13 + 5y5 + 5
Answer: B
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Write the slope-intercept form of the equation of the line satisfying the given conditions.Through 
; slope = - 
A. y = - 
x + 
B. y = - 
x + 
C. y = - 
x - 
D. y = - 
x + 
Find the axis of symmetry of the function.f(x) = 2x2 + 16x + 31
A. x = -4 B. x = 4 C. x = 1 D. x = -1
Find the center and radius of the circle whose graph is shown. Write the standard form of the equation of the circle.
A. r = 
; (h, k) = (3, -1); (x + 3)2 + (y - 1)2 = 3
B. r = 3; (h, k) = (3, -1); (x - 3)2 + (y + 1)2 = 9
C. r = 
; (h, k) = (3, -1); (x - 3)2 + (y + 1)2 = 3
D. r = 3; (h, k) = (3, -1); (x + 3)2 + (y - 1)2 = 9
Evaluate the function as indicated.Find f(-5) when f(x) = 12x + 8.
A. 68 B. -52 C. -59.2 D. -68