A point has its $x$-coordinate equal to $-2$ times its $y$-coordinate. If the $y$-coordinate is $3$, the…

A point has its $x$-coordinate equal to $-2$ times its $y$-coordinate. If the $y$-coordinate is $3$, the point is:
  1. $(6,3)$
  2. $(-6,3)$
  3. $(3,-6)$
  4. $(-3,6)$

Solution

$x = -2y = -2(3) = -6$. So the point is $(-6,3)$.

Asked in: IMO

Practice more INTRODUCTION TO GRAPHS questions on Aicharya