In each case, determine whether or not the lines have a single point of intersection. If they do, give an equation of a plane containing them. a) r₁ = (5t, 2t - 1,2t − 2) and r₂ = (t − 6, -t + 5, t - 8) b) r₁ = (4t, -4t + 1,1 − 5) and r₂ = (2t-3,-1,-t-1) (Express numbers in exact form. Use symbolic notation and fractions where needed. Enter DNE if lines do not intersect.)

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