AP Calculus BCeasymcq1 pt
If x(t) = 2t and y(t) = t² + 1, the velocity vector is
A.⟨2, 2t⟩
B.⟨2t, t²⟩
C.⟨2, t²⟩
D.⟨1, t⟩
Explanation
Core Concept
x′ = 2, y′ = 2t.
Correct Answer
A⟨2, 2t⟩
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