Open Middle®
Directions: Using the digits 1 through 9, at most one time each, create a system of equations that has no solutions.
Hint
Hint
What would three lines on a plane that do not intersect look like?
Answer
Answer
There are multiple answers but the lines must be parallel. One solution is 1x + 2y = 5, 3x + 6y = 7, 4x + 8y = 9
Source: Nanette Johnson and Robert Kaplinsky
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