Precalculus extensions: motion, matrices and transitions
Connect component graphs to paths, reconstruct matrix actions, and distinguish possible from impossible transition histories. These college-preparation extensions are outside AP Precalculus examination weighting.
Open any lesson. Completion records participation; automatic practice checks and human judgment of written arguments are separate. This unit retains its own versioned requirements.
Readiness and preparation
Check your starting point
Try these short questions on paper, then compare your reasoning. They are optional self-checks, not a placement score or a navigation requirement. Use a targeted review when useful and return with your browser’s Back control.
What does a pair of component rules describe?
Both coordinates must use the same parameter value and its stated interval.
Compare reasoning and find a refresher
For x=t² and y=t on 0≤t≤2, the point at t=1 is (1,1). Eliminating t gives x=y² with 0≤y≤2; the unrestricted parabola includes points the path never reaches.
Image construction and reconstruction use the chosen vector convention.
Compare reasoning and find a refresher
For column vectors, the first and second columns are the images of (1,0) and (0,1). Multiplication combines those images using the input coordinates; AB applies B first, then A.