Practice Exam 1
1. Which of the following graphs represents a function?
a.
b.
2. A line is given by the equation y = 3x 9.
a. What is the horizontal intercept?
b. What is the vertical intercept?
c. What is the slope?
d. Graph the line.
3. A line is given
Exam2Part2
Answers
1.Whichofthefollowinggraphsrepresentsafunction?
a.
Yes
b.
No
2.Findtheequationofthelinewhichpassesthroughthepoints(2,1)and(4,5). y 2 x 7
3
3
3.Findtheequationofthelinewhichpassesthroughthepoints(2,4)and(2,3).
4.Alineisgivenbytheequation
PracticeExam2
Answers
1.a.x
>2
b.x
>2
2.3
3.a. 3 x 2 x 2
e.
b.2x
2+5x+1
8x 2
2 3
3 or 8 x y
y
c. 6x 5
f. 8x 6
d. 3x 4 9 x 3 15 x 2
g. 12 x 2 x 6
4.2
5.a. 100 xy ( x y )
6.a. x
3
e. x
b. ( x 6)( x 3)
b.Nosolution
2 12
4
7. 0.79(1.10)33 =$18.35
f.x=19
c
Practice Exam 2
1. Solve the following:
a. 4(x - 1) > 3x 2
b. 2(x - 3) < 3x - 4
2. What is the degree of the polynomial 3 x 2 8 x 3 2 x 4 ?
3. Perform the indicated operations and express your answer in simplest form.
a. (2 x 2 3 x 5) ( x 2 4 x 3)
b. (5x2
Exam2Part2
Answers
1.Solvethefollowing:
a.5(x3)<3x7 x<4
b.2(x3)5>7x3(x+4)
x<1/2
2.Whatisthedegreeofthepolynomial?4
3.Performtheindicatedoperationsandexpressyouranswerinsimplestform.
a.
+2x+2
x2
b.
8
8x
4
c.
2
12x 18x3+9x
d.
e.
6
8x
f.
2x30
12x2
g.
1