doodlean928 doodlean928
  • 20-11-2018
  • Mathematics
contestada

The points -13 and 6 are plotted on a number line. What is the distance, in units, between the two points?

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jimrgrant1 jimrgrant1
  • 20-11-2018

19 units

Use the absolute value to find the difference between the values. This ensures that no matter which way round the calculation is done the result is the same

| - 13 - 6 | = | - 19 | = 19

or

| 6 - (- 13) | = | 6 + 13 | = | 19 | = 19


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