Polygon abcd is rotated 90º counterclockwise about the origin to create polygon a′b′c′d′. match each set of coordinates to the vertices of polygon a′b′c′d′. tiles a′ (-1, 3) b′ (-2, 2) c′ (-2, 1) d′ (-1, 1)

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Look at the picture.

A'(-1, 1), B'(-2, 1), C'(-2, 2), D'(-1, 3)

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is