Chapter 5 Quadratic Functions - 5.6 The Quadratic Formula And The Discriminant Worksheet Template Page 8
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M
R
IXED
EVIEW
S
L
I
Solve the inequality. Then graph your
OLVING
INEAR
NEQUALITIES
solution.
(Review 1.6 for 5.7)
3x + 6 > 12
16 º 7x ≥ º5
85.
86.
87.
º2(x + 9) ≤ 8
88.
10x + 3 < 6x º 1
3
89.
4 ≤ 5x º 11 ≤ 29
90.
x + 20 ≤ 14 or 1 > 8 º x
2
G
L
I
Graph the inequality.
(Review 2.6 for 5.7)
RAPHING
INEAR
NEQUALITIES
91.
y > x
92.
y ≤ º2x
93.
y < 3x º 2
x + y > 5
2x º 3y ≥ 12
7x + 4y ≤ º28
94.
95.
96.
A
V
F
Graph the function.
(Review 2.8)
BSOLUTE
ALUE
UNCTIONS
97.
y = |x º 3|
98.
y = |x| + 2
99.
y = º2|x| º 1
1
100.
y = 3|x + 4|
101.
y = |x + 2| + 3
102.
y =
|x º 5| º 4
2
Q
2
UIZ
Self-Test for Lessons 5.4–5.6
Write the expression as a complex number in standard form.
(Lesson 5.4)
1.
(7 + 5i) + (º2 + 11i)
2.
(º1 + 8i) º (3 º 2i)
1
º
3
i
(4 º i)(6 + 7i)
3.
4.
5
+
i
Plot the numbers in the same complex plane and find their absolute values.
(Lesson 5.4)
2 + 4i
º5i
º3 + i
5.
6.
7.
3
7
4 + 3i
º4
º
º
i
8.
9.
10.
2
2
Solve the quadratic equation by completing the square.
(Lesson 5.5)
2
2
x
+ 8x = º14
x
º 2x + 17 = 0
11.
12.
2
2
2
13.
4p
º 40p º 8 = 0
14.
3q
+ 20q = º2q
º 19
Write the quadratic function in vertex form.
(Lesson 5.5)
2
2
2
15.
y = x
+ 6x + 1
16.
y = x
º 18x + 50
17.
y = º2x
+ 8x º 7
Use the quadratic formula to solve the equation.
(Lesson 5.6)
2
2
x
+ 2x º 10 = 0
x
º 16x + 73 = 0
18.
19.
2
2
2
20.
3w
+ 3w = 4w
+ 4
21.
14 + 2y º 25y
= 42y + 6
E
A juggler throws a ball into the air, releasing it 5 feet
22.
NTERTAINMENT
above the ground with an initial vertical velocity of 15 ft/sec. She catches the
ball with her other hand when the ball is 4 feet above the ground. Using the
2
model h = º16t
+ v
t + h
, find how long the ball is in the air.
(Lesson 5.6)
0
0
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Chapter 5 Quadratic Functions
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