Write the equation that results in the desired transformation.The graph of y = x2, vertically stretched by a factor of 7
A. y = 7(x - 7)x2
B. y = -7x2
C. y = (x - 7)2
D. y = 7x2
Answer: D
Mathematics
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A. Vertex at (-5, -6) B. Vertex at (10, 6) C. Vertex at (-10, -6) D. Vertex at (5, 6)
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A. 
B. 
C. 
D. 
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Solve the problem.y varies jointly as x and z. y = 2.4 when x = 40 and z = 6. Find y when x = 35 and z = 8.
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Find the indicated coefficient or term.The coefficient of x in the expansion of (2x + 3)5
A. 540 B. 1215 C. 270 D. 810
Mathematics