Mth 100 Quiz sec. 4.4, 4.5
Name: ________________________________ Date: ______
1). Graph the inequality (4 pts.)
2). Graph the intersection of the pair of inequalities. (6 pts.).
Be sure to clearly identify your solution.
3x – y ≥ 3 and y < 3
x + 4y ≥ − 4
y
y
x
x
3). Decide if the relation is a function. Give a reason for your answer. Give the domain and range. (3 pts. )
{(−12, 5), (−10, 3), (8, 3)}
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Domain: ____________________ Range: __________________
4). Decide whether each relation is a function. Give a reason for your answer. (2 pts. each)
a).
6
b).
y
y
4
2
-5
5
10
x
x
-2
-4
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5). Let f(x) = -2x + 4 and g(x) = -x2 + 3x + 2. Find the following. (1 pt. each)
a). f(-3) = ___________
b). g(10) = ___________
c). f(-x) = ___________
d). g(-x) = ____________