Quiz I stuph
1. For which of the following is y a function of x? You may circle your answer(s).
a.
d.
x
1
2
-3
-1
0
y
1
4
9
1
0
b.
x y
0 0
1 1
4 2
1 -1
9 -3
c.
x
0
1
3
4
2
y
5
5
5
5
5
e.
2. Write an equation for the piecewise function that corresponds to the graph below.
2
3. Use the graph of f (x) below to answer the following questions.
a. Estimate the relative maxima of the function.
b. Determine the domain of the function.
c. Determine all intervals on which the function is increasing.
4. Let f (x) = 2 − x. Determine the average rate of change of f over the interval [x, x + h].
I.e., find
f (x + h) − f (x)
.
h