In the xy –plane, line a and line b have the same slope. If the y –intercept of line a  is –1, what is the y –intercept of line b ? (1)   The x –intercept of line a  is –1. (2)   Line b  passes through the point (10, 20).⁥䈼举呏⼼_出国考试答疑器_GMAT

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In the xy –plane, line a and line b have the same slope. If the y –intercept of line a is –1, what is the y –intercept of line b ?

(1) The x –intercept of line a is –1.

(2) Line b passes through the point (10, 20).

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