For the curve and

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

For the curve

x=t^{2}-4t

and

y=3t+5

, at which value of

t

is the tangent vertical (i.e.,

\dfrac{dy}{dx}

is undefined)? (a)

0

(b)

4

(c)

2

(d)

-2

Related theory

Parametric Functions
Implicit and parametric differentiation
Derivatives of parametric functions
Continuity and Differentiability

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