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10-25.

Copy the axes below and complete the scales.  

  1. Coordinate plane, with the axes scaled with 3 evenly spaced marks above, below, right, and left of the origin. On x axis, third mark on right is labeled 12. On the y axis, the second mark up is labeled 8.

  1. Coordinate plane, with the axes scaled with 3 evenly spaced marks above, below, right, and left of the origin, with labels as follows: On x axis, first mark left, negative 10, third mark right, 30. On y axis, third mark down, negative 15, first mark up, 5.

Remember that where the and intersect is always . To scale the in part (a), you should try dividing by , since that is the number of spaces between and .

The for parts (a) and (b) are labeled below. Were you able to scale the ?

Labels are added to the marks on the x axis, starting on the left, as follows: negative 12, negative 8, negative 4, 0, 4, 8.

Labels are added to the marks on the x axis, starting on the left, as follows: negative 30, negative 20, negative 10, 0, 10, 20.