Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 + 8x + 1
A. (4, 17) ; x = 4
B. (8, 1) ; x = 8
C. (-4, -47) ; x = -4
D. (-4, -15) ; x = -4
Answer: A
Mathematics
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(4, 3)
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Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 5x + 4y = 86x - 3y = 33
A. {(-4, 3)} B. {(4, -3)} C. {(3, -4)} D. {(-3, 4)}
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Use common logarithms or natural logarithms and a calculator to evaluate to four decimal placeslog0.417
A. -3.0920 B. 0.8325 C. 1.6284 D. -0.3234
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Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.2.1x - 0.4y - 5.0z = 3.05.2x - 0.9y - 0.9z = -3.12.4x + 0.7y + 4.3z = 9.5
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