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Calculus
Practice Quiz 115

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1.  The inverse of y = (4x + 6)/(x - 2) is:
x - 2/2x + 4
2x + 6/x - 4
4		 2.  For y = 1/(x + 6)2, for what value(s)  is y
not continuous?
x = 6
x = 36
x = -6
3.  For y = (2x - 3)1/4, for what values is y
not continuous?
x < 3/2
x = 3/2
x > 3/2		 4.  The limit of (x + 5)1999 as x approaches -6 is:
1999
1
-1
5. The limit of (4x + 6)/(x + 3) as x approaches -6 is:
 -6
does not exist
6		 6.  The limit of (x2 + 6x) / (x2 - 6x) as x approaches 6 is:
                       
-6
6
does not exist
7.  The limit of (x2 - 25)/(x + 5) as x approaches -5 is:
-10
10
does not exist		 8.  The limit of (1 + cos(x))/cos(x) as x approaches 0 is:
 does not exist
2
1
9.  The limit of (tan(4x))/x as x approaches 0 is:
1
4
0		 10. The limit of ( x/(x + 1) )( x2/(3 + x2) ) as x approaches infinity is:
does not exist
1
-1
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