The four figures below are graphs of the vector-valued function r(t) = 8 cos ti + 8 sin tj + (t/8)k. Match each of the four graphs with the point in space from which the helix is viewed. The four points are (0, 0, 60), (60, 0, 0), (-60, 0, 0), and (30, 60, 30). (a) (b) M Ⓒ (-60, 0, 0) (30, 60, 30) (0, 0, 60) (60, 0, 0) (0, 0,60) (60, 0, 0) Ⓒ (-60, 0, 0) (30, 60, 30) (d) O Ⓒ (0, 0, 60) (60, 0, 0) Ⓒ (-60, 0, 0) (30, 60, 30) Ⓒ (0, 0, 60) Ⓒ (60, 0, 0) Ⓒ (-60, 0, 0) (30, 60, 30)

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