Describe the graph of the equation: r = 6ti − 9j + (1 + 8t)k. [Choose the correct answer.] O The equation is a line in 3-space through the point (6) and parallel to the vector - 9j + k. O The equation is a line in 3-space through the point (0, – 9) and parallel to the vector 6i + 8k. O The equation is a helix in 3-space containing the point (0, – 9) and above a circle with radius 14. O The equation is a line in 3-space through the point (0, - 9) and perpendicular to the vector 6i + 8k.

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