Which region represents the solution to the system shown here? y –3x + 5 and y 0.5x – 1 i ii iii iv?
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Answer:The region represents the solution to the given system is region iv.Step-by-step explanation: Given : system of linear equation y = –3x + 5 and y = 0.5x – 1We have to find the region that represents the solution to the system.Consider the given system y = –3x + 5 .....(1) y = 0.5x – 1 ..........(2)Multiply (2) by 10, we have,10y = 5x - 10 ....(3) Multiply equation (1) by 10, we have,10y = –30x + 50 ..........(4)Subtract (3) and (4) , we have,10y - 10y = –30x + 50 - ( 5x - 10 ) Simplify, we have,0 = –30x + 50 - 5x + 10 35x = 60x = [tex]\frac{12}{7}=1.71[/tex](approx)Put x = [tex]\frac{12}{7}[/tex] in (3) , we get,10y = 5 - 10 [tex]10y = 5(\frac{12}{7})- 10\\\\\Rightarrow y=-0.143[/tex]Thus, point of solution is (1.71, -0.143)Since, (1.71, -0.143) lies in Fourth quadrant.So the region represents the solution to the given system is region iv.
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