Math Test Worksheets With Answers - Mat 1101 - 2010 Page 2
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1
213. Find the domains of the functions below:
2
x
3
2
a) f (x) = 4x
+ 2x
– 1
b)
f
(
x
)
= x
+
9
c)
f
(
x
)
=
x
−
4
all real numbers
x ≥ –9
all real numbers except 4
14. Find the equation of the line having the following properties:
2
a) m = 1.8, (0, 2.7)
b) m =
, (–5, 3)
c) Through points (3, –4) and (–1, 1)
3
y = 1.8x + 2.7
2x – 3y = –19
5x + 4y = –1
or
or
2
19
5
1
y
=
x
+
y
=
−
x
−
3
3
4
4
15. Given the graph of the line below, find the following. (Assume each tick mark is “1”.)
a. ∆x: _+3__
b. ∆y: __+5__
5
c. The slope of the line
d. The y-intercept of the line __–4__
3
5
e. The equation of the line y =
x – 4
3
f. A point on the line other than the y-intercept. __(3, 1) or (–3, –9)__
16. Graph the line given by 4x + 2y = 4
17. Find the y-intercepts of the following lines:
x
y
a) 5x – 12y = 24
(0, –2)
0
2
1
0
7
2
2
b) y =
x
+
, 0
2
5
5
7
see graph
c) 6y = 7 – 2x
, 0
6
18. Write the following in slope-intercept form.
a) 7x – 3y = 12
b) 2x = 9y – 6
c) –11x + y = 18
7
2
2
y
=
x
−
4
y
=
x
+
y = 11x + 18
3
9
3
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