Question

In this question Find graphically the vertices of the triangle whose sides have the equation 2y–x=8, 5y–x=14, 2x–y= –1 I have done all steps correct and the graph was also correct but my final awnser was half wrong then how much marks will i get out of 3 This was the question of cbse exam 2020

Answer 1

Answer:

Sorry don't know..

Answer 2

$2y - x = 8$

$2y = 8 + x$

$y = 8 + x / 2$

                  $Sub x = 0$

$y = 8 + 0 / 2$

$y = 4$

$5y - x = 14$

$5y = 14 + x$

$y = 14 + x / 5$

                       $Sub x = 1$

$y = 14 + 1 / 5$

$y = 3$

$2x - y = 1$

$2x = 1 + y$

$x = 1 + y / 2$

                           $Sub y = 1$

$x = 1 + 1 / 2$

$x = 2$

$Therefore, the vertices of the triangle are (0,4) ; (1,3) ; (1,2).$