Find the rule of a quadratic function whose graph has the given vertex and passes through the given point.vertex (8, 3); point (4, 19)
A. f(x) = (x - 8)2 + 3
B. f(x) = 2(x + 8)2 + 3
C. f(x) = (x + 8)2 + 3
D. f(x) = (x - 8)2 - 3
Answer: A
Mathematics
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Find the real solutions, if any, of the equation. Use the quadratic formula.x2 + 4x - 7 = 0
A. {-2 - 2
, -2 + 2
}
B. {2 + 
}
C. {-2 - 
, -2 + 
}
D. {-1 - 
, -1 + 
}
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Solve the equation.(4x)x = 256
A. {2} B. {2, -2} C. {3, 1} D. {4, 0}
Mathematics
Find the slope of the line.
A. 
B. 0
C. undefined
D. 3
Mathematics
A booklet is rectangular and its length is 2 centimeters less than 2 times its width. Its area is 40 square centimeters. Find the dimensions of the booklet.
A. 5 cm by 8 cm B. 4 cm by 14 cm C. 4 cm by 8 cm D. 5 cm by 14 cm
Mathematics