Question

please help me
triangle ABC has vertices A(1,0), B(7,4), and C(5,7)
a)the coordinates of A'B'C', the image of ABC after a reflection in the origin, are A(----,-----), B(-----,-----) and C(------,------)
b)the coordinates of A''B''C'', the image of A'B'C' under the translation (x,y)--->(x+1,x+5), Are A''(-----,------)B''(------,-------),C(-------,--------)

Answer 1

I would try to graph that ABC triangle, labeling the vertices on the cartesian backgrund.