Question 1
Another point on the line defined by the point (50,200,75) and the change in position <50,-150,150> is:
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<200,100,450>.
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<100,50,225>.
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<0,0,0>.
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<0,50,-75>.
Question 2
A system of two linear equations in the same plane has an infinite set of solutions if:
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the two graphs have different slopes.
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the two graphs have the same slope but different y-intercepts.
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the two graphs have the same slope and y-intercept.
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the two graphs have different slopes and the same x-intercept.