If rectangle STUV is translated using the rule (x, y) → (x − 2, y − 4) and then rotated 90° counterclockwise, the location of V″ is: A. (3, -9).
In Mathematics, a translation is a type of transformation that shifts every point of a geometric object in the same direction on the cartesian coordinate, as well as for the same distance.
In this exercise, we would apply a translation 2 units to the left and 4 units down to rrectangle STUV, in order to determine the coordinates of its image as follows;
(x, y) → (x - 2, y - 4)
V (-7, 1) → (-7 - 2, 1 - 4) = V' (-9, -3).
Next, we would apply a rotation of 90° counterclockwise to the new coordinates of V as follows;
(x, y) → (-y, x)
V (-9, -3) → V" (3, -9).
Complete Question:
Rectangle STUV is shown on a coordinate plane.
If rectangle STUV is translated using the rule (x, y) → (x − 2, y − 4) and then rotated 90° counterclockwise, what is the location of V″?
(3, -9)
(3, -4)
(-2, -4)
(-2, -9)