Example Question 9

Example corresponding to question 9 in algebra_4.

Example 1


The solution of the equation $-5x+6=12$ falls between the numbers

  1. $-3$ and $-2$


  2. $-2$ and $-1$


  3. $-1$ and $0$


  4. $5$ and $6$


  5. $8$ and $9$

Solution


  1. We need to solve the given equation before we can find the interval. Hence

    $-5x+6=12$ is equivalent to $-5x=6$ which gives $x=-\dfrac{6}{5}=-1.2$

  2. The solution $-1.2$ is between $-2$ and $-1$.

    Answer B