Test 1 Mat 190 Worksheet - Augusta Technical College - Winter 2008 Page 2
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1
213. Find the domains of the functions below:
x 3
2
a)
( f
) x
=
b)
( f
) x
=
x
+
4
c)
( f
) x
=
x 2
+
8
x
−
8
14. Find the equation of the line having a slope of 2.3 and passing through (0, -1.9). ______________________
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. Determine whether the data in the table below
17. Find the y-intercepts of the following lines:
represents a linear or a nonlinear function.
5
x
y
a) y =
3 +
x
_______________
9
-4
-8
-2
-4
b) 3x – 8y = 32
_______________
0
0
1
2
3
6
c) 5x = 6y + 12
_______________
18. Find the domain and range of each of the following graphs of functions. (Assume each tick mark is “1”.)
a)
b)
Domain = ___________________
Domain = ___________________
Range = ____________________
Range = ____________________
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