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4-19.

If , find:

  1. Where intersects the y-axis.

Set to

intersects the y-axis at .

  1. Where intersects the x-axis.

Set y to

intersects the x-axis at and .

  1. If .

  1. Find the intercepts of and compare the graphs of and .

  2. Find .

Follow the steps in parts (a) and (b).

How are the positions of the graphs different? Are their sizes different?

Subtract the two expressions.