This preview shows pages 1–3. Sign up to view the full content.
Review for Test 2 (MAC1105)
Graph the equation and list the intercepts and symmetry, if any:
Intercepts
Symmetry: does (x, y) =
x
y
xaxis (x,y)
yaxis (x, y)
origin (x,y)
1
y –
1
/
3
x
2
+ 2 = 0
(
29
6,0
±
(0, 2)
No
Yes
No
2
y =
x
3
5
2
(0, 0)
(0, 0)
No
No
Yes
3
=

x
y
1
8
3
4
(3, 0)
(0,
3
/
2
)
Yes
No
No
2
2
2
2
1
2
3
1
2
0
6
0
3
6
6
y
x
x
x
x
x
⇒
⇒
=


=

=
=
= ±
1
1
0
8
3
3
8
4
4
12
8
8
12
3
2
y
y
y
y
y
⇒
=

⇒
=
=
= ±
= ±
4.
What is the equation of the line passing through the points (5, 7) and (4, 8)?
7
8
15
5 4
m
 
=
= 

y – 8 = 15(x – 4)
Y = 15x + 60 + 8 = 15x + 68
or
15x + y = 68
5.
Find an equation of a circle in standard form whose diameter
has endpoints of
(8, 4)
and
(6, 2).
5.
(x – 1)
2
+ (y + 1)
2
= 58
M = (h, k) =
(
29
(
29
8
6
4
2
,
1, 1
2
2

+
 +
÷=

÷
r =
(
29
(
29
2
2
1
8
1
4
49
9
58

+  +
=
+
=
6.
Find the center and radius of
+

+
+
=
x
y
x
y
2
2
6
1 0
1 8
0
;
sketch the equation.
6. Center:
(3, 5)
Radius:
4
(
29
(
29

+
+
= 
+
+
+

+
+
=
+
x
x
y
y
x
y
2
2
2
2
2
2
3
5
9
6
10
1 8
5
5
2
3
1 6
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document 7.
Determine whether the following is a function; state its domain, range, and intercepts:
= 
+
y
x
2
4
16
16
4
y
x
= ±

Function?
Domain
Range
Intercepts
No
(
∞
, 4)
(
∞
,
∞
)
(4, 0), (0, ±4)
8.
If

=
+
x
f (x )
x
2
2
7
, find
f(x  4).
8.
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 01/04/2012 for the course MAC 1105 taught by Professor Staff during the Fall '08 term at Miami Dade College, Miami.
 Fall '08
 Staff

Click to edit the document details