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Australian AMC 2009 - Senior Question 3

AMC AUSTRALIA · Australian AMC 2009 - Senior

Question 3

The graph of $y=kx$ passes through the point $(-2,-1)$. The value of $k$ is
  1. $2$
  2. $-2$
  3. $4$
  4. $\frac12$
  5. $-\frac12$