1. Find the domain and range of y = √81-x. Express your answer using set notation. 2 2. Find the domain of y = (x-3)(x+7). Express your answer using interval notation. 3. Find the domain of the function shown on the graph. 10 9 8 -7 6 5 4 3 2 -2-10 1 2 3 4 5 6 78910 11 12

Find the domain of the function, f(x)45x. Write the domain in interval notation.

Suppose you have a job that pays $8.50 per hour and you work anywhere from 10 to 40 hours per week. a. Write an equation, with a restriction on the variable x, that gives the amount of money, y, you will earn for working x hours in one week. b. Use the function rule you have written in part (a) to complete Table 4. c. Construct a line graph from the information in Table 4. d. State the domain and range of this function.