Vertex Form Worksheet With Answers Page 3
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1
2
3
4Perform the indicated operation and simplify. Write your answer in the form of a complex number,
a
+
bi
.
(Sec. 4.6)
17.)
(3+i)+(l-5i)
18.)
(-4+2i)-(7-3i)
Write in vertex form and state the vertex. (Sec. 4.7)
21.)
y
=
x2 +18x-4
22.)
y = 2 x 2 +4x-10
Find the discriminant. Then state the number and type of solutions. (Sec. 4.8)
23.)
7 x 2 - x + l 0 = 0
24.)
+x2
+
1 Ox
=
25
-2m
Discriminant:
Discriminant:
--Job
Number of solutions:
'
2
Number of solutions:
Z
Type of solutions:
i
Type of solutions:
I
m s n a ~
.
0 '
Solve algebraically using the number line. (Sec. 4.9)
.
.
25.)
x 2 - 4 x 5 2 1
26.)
x2-6x-16>0
-3
,
3-
0
Solution:
XZ-3
MA
Solution:
X L - L E
X 7 a
X L ?
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