Find the axis of symmetry of the parabola defined by the given quadratic function.f(x) = x2 + 14x + 2
A. x = -47
B. x = -7
C. x = 14
D. x = 7
Answer: B
Mathematics
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Solve.3x2 - 4y2 = -523x2 + 3y2 = 60
A. (2, 4), (4, 2), (-2, -4), (-4, -2) B. (2, -4), (2, 4) C. (-2, -4), (-4, -2) D. (2, 4), (-2, 4), (2, -4), (-2, -4)
Mathematics
Find the domain and the range of the function.
A. D: [0, ?); R: 
B. D: 
; R: [0, ?)
C. D: 
; R: (-?, 0]
D. D: (-?, ?); R: (-?, ?)
Mathematics
Write the equation in polar form.y = -5
A. r = -5 sec ? B. r = -5 sin ? C. r = -5 csc ? D. r = -5 cos ?
Mathematics
Graph the function by hand. Then use a graphing calculator to verify your graph. Find the domain and range of the function.f(x) = 8(4)x
A. domain: all real numbers;
range: y < 0
B. domain: all real numbers;
range: y > 0
C. domain: all real numbers;
range: y < 0
D. domain: all real numbers;
range: y > 0
Mathematics