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If the three lines above all intersect at exactly one point, what is the value m + b?

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by AAPL » Fri Jul 30, 2021 2:54 pm

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Veritas Prep

y = mx − 7
y = 12x + b
y = x + 1

If the three lines above all intersect at exactly one point, what is the value m + b?

1) The x-coordinate at the point where all three lines meet is 8
2) The y-coordinate at the point where all three lines meet is 9

OA D
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Source: — Data Sufficiency |