Final answer:
The formula to shift from a known point is represented by option a) Shift = (Δx, Δy), where Δx is the horizontal shift and Δy is the vertical shift.
Step-by-step explanation:
The formula to shift from a known point is represented by option a) Shift = (Δx, Δy), where Δx is the horizontal shift and Δy is the vertical shift. This formula allows you to move a known point in both the horizontal and vertical directions.