1. What are the domain and range of each function? Write the domain and range in set-builder notation and interval notation.
a. Y = I x-41
b. y = 6x-2x
I
2. What are the x- and y-intercepts of g(x) = 4 - x??
3. a. For what interval(s) is the function h(x) = 2x + 10 positive?
b. For what interval(s) is the function negative?
4. For what values of x is each function increasing? For what values of x is each function
decreasing?
a. f(x) = x2 - 4x
b. f(x) = -2x - 3
5. What do the average rates of change of the function y =1x1 + 2 over the intervals (-2, 0], [0, 3),
and [-2, 3] indicate about the function?