How much time until your castle is destroyed? Suppose you decide to build your castle at the average
waterline, just as the tide goes below the average
waterline. How long will you have to build your castle
before the tide rises back up to the average waterline
and destroys your work?
Use the graph to determine your answer. Use complete
sentences and appropriate units to give your answer.
Explain (using specifics) how you used the graph to
determine your answer.

because they could drop even lower..

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb