Lines A, B, and C show proportional relationships.
Which line has a constant of proportionality between y and x of 2/3?

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step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.