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In the xy-coordinate plane, lines j and k intersect at point (1, 3). I

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In the xy-coordinate plane, lines j and k intersect at point (1, 3). I  [#permalink]

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New post 19 Dec 2018, 01:25
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  25% (medium)

Question Stats:

75% (01:24) correct 25% (01:58) wrong based on 48 sessions

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Joined: 12 Dec 2018
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Re: In the xy-coordinate plane, lines j and k intersect at point (1, 3). I  [#permalink]

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New post 19 Dec 2018, 01:34
1
Line j: y=ax+10
By substitution of (1,3)
a=-7
Similarly for line k: 3=a+b => b=10

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Re: In the xy-coordinate plane, lines j and k intersect at point (1, 3). I   [#permalink] 19 Dec 2018, 01:34
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In the xy-coordinate plane, lines j and k intersect at point (1, 3). I

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