Part B
Open the graphing tool, and compare the functions using the sliders. What can be said about the domain of
y = sqare root if x - k and the domain of y = square root of x + k?

In y= , the domain depends on k . As you slide k , you move the left bound of the domain interval. In y=  , the domain is fixed and always starts at 0 .

Step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.