Test 1 Mat 1101 Equation Worksheet - 2009 Page 2
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1
213. Find the domains of the functions below:
11
4
3
a)
( f
) x
=
x
−
2
b) f (x) = –5x
+21x
– 9
c)
( f
) x
=
x
−
7
14. Find the equation of the line having the following properties:
4
a) m = 4.6, (0, –2.1)
b) m =
, (1, 5)
c) m = 2, (3, –2)
9
15. Given the graph of the line below, find the following. (Assume each tick mark is “1”.)
a. ∆x: _______
b. ∆y: ______
c. The slope of the line _______ d. The y-intercept of the line ______
e. The equation of the line _______________.
f. A point on the line other than the y-intercept. ________
16. Graph the line given by 5x – 3y = 15
17. Find the y-intercepts of the following lines:
x
y
a) 4x – 7y = 21
_______________
9
13
b) y =
x
−
_______________
8
4
c) –x = 4y –18
_______________
18. Write the following in slope-intercept form.
a) 5x – 10y = 12
b) 3x + y = 9
c) –2x – 4y = 16
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