Find the vertex and axis of symmetry of the graph of the function.f(x) = 3x2 - 6x + 1
A. (-2, 25) ; x = -2
B. (2, 7) ; x = 2
C. (1, -2) ; x = 1
D. (-1, 10) ; x = -1
Answer: C
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Use a graphing calculator to find the vertex and intercepts for the equation. If your answers are not exact, round to the nearest tenth.y = x2 - 6.3x + 5.51
A. x-intercepts: (1, 0) and (5.3, 0); y-intercept: (0, -5.51); Vertex: (3.2, -4.4) B. x-intercepts: none; y-intercept: (0, 5.51); Vertex: (3.2, -4.4) C. x-intercepts: (1, 0) and (5.3, 0); y-intercept: (0, 5.51); Vertex: (-6.3, 5.5) D. x-intercepts: (1, 0) and (5.3, 0); y-intercept: (0, 5.51); Vertex: (3.2, -4.4)
Write the complex number in rectangular form.6(cos 330° + i sin 330°)
A. -3
- 3i
B. 3
+ 3i
C. 3
- 3i
D. -3
+ 3i
Find an equation of a parabola satisfying the given conditions.Focus at (-6, 6), directrix x = -4
A. (x - 6)2 = -4(y + 5) B. (y + 6)2 = -4(x + 5) C. (y - 6)2 = -4(x + 5) D. (x + 6)2 = -4(y + 5)
Evaluate.
A. 840 B. 120 C. 12 D. 84