Precalculus Practice Exam---Solutions To Problems

Part 3	Test 3

Problem 1:

The term is valid if x>5. The term is valid if x>6. The term is valid if x>-5. The term is valid if or when x>6 or x<5. The common domain is the set of real numbers x>6.

Problem 2:

Problem 3:

The term is valid when x>5. The term is when x>6. The term is valid when x<8. The domain is the set of real numbers greater than 6 and less than 8.

x=7

Problem 4:

Points :

years.

Problem 5:

(1)

(2)

(3)

1=a+b(4)

10 = 4a+b(5)

a =3

1 = 3 + b

b = -2

6 = 3-2+c

c=5

Problem 6:

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Sun Jun 22 21:16:15 MDT 1997

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