NAME _____________________________________________ DATE ____________________________ PERIOD _____________
Chapter 2 Mid-Chapter Test
SCORE ______________
(Lessons 2-1 through 2-4)
Part I Write the letter for the correct answer in the blank at the right of each question.
D
1. ______________________
1. Which of the following relations is not a function?
A
B
C
D
H
2. ______________________
D
3. ______________________
H
4. ______________________
2. Which equation or function is linear?
3
2
F y = 𝑥+1
G f(x) = 3(1 – 𝑥 2 )
H 2y =
2𝑥−1
4
5.
J 3xy = 4
For Questions 3 and 4, use the graph shown.
3. State the number of real zeros of the function.
A2
C1
B4
6.
D3
4. As x → +∞, f(x) → ? describes the end behavior of the graph.
F –∞
G0
H +∞
Jx
D = {0, 1, 2, 4};
R = {–2, 3, 4}; yes
_____________________
Part II
7.
5. Use the key features to sketch a linear graph. The x-intercept is 2. The
y-intercept is 2. The function is decreasing for all values of x. The function
is positive for x < 2. As x → –∞, f(x) → +∞ and as x → +∞, f(x) → –∞.
Graph each relation and state the domain and range of each relation.
Then determine whether the relation is a function.
6. {(2, 4), (4, –2), (1, 3), (0, 3)}
7. y = 2x – 3
For Questions 8 and 9, find each value if f(x) = –3𝒙𝟑 + 2𝒙𝟐 .
1
8. f(–1)
9. f( )
D = {all real numbers};
R_____________________
= {all real numbers}; yes
8. ______________________
5
𝟏
9. ______________________
𝟖
10.
2
10. Graph f(x) = 𝑥 3 + 4𝑥 2 – 5 by using a table of values. Then determine
consecutive integral values of x between which each real zero is located.
–4
and –3; –2 and –1, 1
______________________
Chapter 2
51
Glencoe Algebra 2