2.1 (day 2)
In each of the following graphs, a) tell whether or not each graph is a function and, b) identify the domain and
range of each relation.
1.
2.
3.
4.
5.
Find the domain of each function.
Write the answer in interval notation.
6.
1
f
x
=
x 1
7.
f
x
= 3 x + 2
8.
2 x +5
g x
=
7
9.
x  2
H x
=
x + 2
2.2 (day 1)
I.
Write the equation of the line in the following forms:
a.
pointslope form
b.
slopeintercept form
c.
standard form
1.
slope =
1
2
and passes through the point (0, 4)
2.
a line that passes through the points (2, 3) and the origin
3.
the xintercept is 10 and the yintercept is 2
4.
a line passing through (4, 6) and parallel to the graph of y = 
2
3
x + 5
5.
a line passing through (2, 0) and perpendicular to the graph of y = 3x + 7
II.
Answer the following.
6.
Is the line x =
–
2 perpendicular to the line y = 3?
7.
Is the line x =
–
3 parallel to the line y = 1/3?
8.
Is the line y =
2
3
x
–
4 parallel to the line
3
y = 
x  4
2
?
9.
Are the lines 2x + 3y = 2 and 2x + 3y =
–
4 parallel?
10.
Are the lines x
–
4y = 2 and 4x + y = 8 perpendicular?
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2.2 (day 2)
1.
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 Fall '09
 Lackley
 Math, Algebra, Derivative, real world

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