what dose it ean to label your axis with an "appropriate" scale

Question

im a high school student that is struggling with this question can you help me?

Answer 1

The number line and the axes in the Cartesian Coordinate System (often labeled x and y) have a scale with appropriate numbers.  For example, numbers from -5 to +5 are appropriate when the values of x are -4, -2, +3, and +4.  Tick marks and numbers on the number line (or x-axis) that range from -500 to +500 are not appropriate because it makes it very difficult to clearly see the points plotted.

 

Now, suppose the x-axis represents the days in October and the y-axis represents the high temperature for that day.  An appropriate range of days is 0-31 and appropriate values for y might be 30 °F to 100 °F (appropriate for October but not appropriate for January).