Question
Find a number $b$ such that the three lines in the $x y$ -plane given by the equations $y=2 x+b$, $y=3 x-5,$ and $y=-4 x+6$ have a common intersection point.
Step 1
Step 1: Since the three lines have a common intersection point, we can equate the first two equations and the first and third equations to find the x-coordinate of the intersection point. Show more…
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