Answer:
The coordinates Of J RB which is a triangle are J(1, -2), R(-3,6), and B(4,5).
Now it is transformed by the scale i.e translated by T(2,-1).
So , the New coordinates after transformation of T(2, -1) i.e 2 units to Right and 1 unit down are J'[1+2,-2-(1)],R'[-3+2, 6-1],[4+2,5-(1)] = J'[3,-3],R'[-1, 5],[6,4]
Now these points which form a triangle are reflected over Y-axis.
So, the coordinates after reflection of triangle J'' R''B'' are j''(-3,-3), R''(1,5), (-6,4) which are the vertices of image.
coordinates of JRB are J(1, -2), R(-3,6), and B(4,5)→After the transformation T(2,-1) over y-axis→ j''(-3,-3), R''(1,5), (-6,4) which are the vertices of image.