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Mathematics 19 Online
OpenStudy (anonymous):

20x+25y=1000

OpenStudy (campbell_st):

what do you need to do with the equation

OpenStudy (anonymous):

Integer solutions?

OpenStudy (anonymous):

\(\large\textbf{Integer solutions}\) 20x + 25y = 1000 4x + 5y = 200 One solution is x = 50, y = 0. Another solution can always be obtained by letting the first term increase by 4 * 5 = 20 and the second decrease by the same amount: x -> x + 5 and y -> y - 4; for example, (55, -4) is also a solution. \(\large\textbf{Slope}\) Write it as y = (1000 - 20x) / 25 = 40 - 4/5 x to deduce that the slope is -4/5. \(\large\textbf{Least distance to the origin}\) We could intersect the line with its perpendicular through the origin. \(\large\textbf{In what quadrances does it lie?}\) Hmm..

OpenStudy (anonymous):

Quadrants*

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