Find the equation of the line by using vectors

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SUMMARY

The discussion focuses on finding the equation of a line using vector addition with vectors a and b. The solution presented is fundamentally correct, emphasizing that the parameter t can take an infinite number of values, allowing for an infinite number of points on the line. The importance of understanding the triangle formed by vector addition is highlighted, clarifying that constraints on t are unnecessary for defining the line's equation.

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Homework Statement


I have to find the equation of the line by using any vector a and b in a way that the line fits the triangle generated by vector addition. If you don't understand my statement, look at my attached file. You will understand what I mean by triangle. Is my solution right?

Homework Equations

The Attempt at a Solution

 

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  • VECTOR.jpg
    VECTOR.jpg
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Essentially, it is correct.

However - There is no requirement for such constraint for t. Remember, you are writing an equation for a line; an infinite number of points are possible.
Further, you could just write the second term on the right, as t(a+b), and t can take an infinite number of values, corresponding to an infinite number of points on the line.
 
Qwertywerty said:
Essentially, it is correct.

However - There is no requirement for such constraint for t. Remember, you are writing an equation for a line; an infinite number of points are possible.
Further, you could just write the second term on the right, as t(a+b), and t can take an infinite number of values, corresponding to an infinite number of points on the line.
thanks I wasn't actually clear on the fact that the boundaries are necessary to fit the idea of triangle.
 

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