Download Math 8 Term 2 Review Worksheet Evaluate the expression when x

Name __________________________________
Math 8
Date ___________________
Term 2 Review Worksheet
Evaluate the expression when x = -6 and y = -2.
1. 7x – 2
2. y – x
3. 2x – y
Evaluate the expression.
5.
8 – 12 ÷ 3 + 32
6.
Simplify the expression.
9. –4(x + 9)
20  13
32  1
7. 42-[(1+3)2 ÷ 4]
8  Z  6
2
10.
4. x2 – (3 + y)
11. 3x  x  2 y  y  3
8. 23 – 3 • 52
12.
45  9 y
9
Solve the equation. Check your solution.
13.
x
= –3
7
14. 2y – 7 = 7
16. 2 x  10  2  x  5
17.
15. 47 = –4z – 2z – 7
x
 12  5
4
18. 2 x  1  2 x 10
Label each graph with the appropriate labels.
Choose from: Linear and Non-linear
Continuous and Discrete
Increasing, Decreasing, Both Increasing and Decreasing, Neither
19.
20.
21.
22.
Which of the following are functions? Circle all relations that are functions.
23.
24.
25.
26.
27. What is the Domain of the relation?
28. Complete the table for the equation and graph.
y  3x  1
What is the Range of the relation?
x
-2
0
2
y
29. Write the set of ordered pairs that represents the mapping.
30. Label each equation and graph as Linear, Quadratic, Absolute Value, or Cubic.
A) y  3x  6
B) y  x 2
C) y  x
D) y  5 x3
31. Find the slope of each line.
A)
B)
C)
y  3x  4
32. Find the slope of the line through each pair of points.
A)
(-10,0) (-18, 6)
B)
(2,5) (2,7)
C) (-3,6) (7,6)
33. Find the y-intercept for each line.
C)
y  3x  4
34. Graph each line.
A)
y  2 x  1
B)
y
3
x 1
4
35. Write the slope-intercept (y=mx+b) form of the equation for each line.
36. Write the slope-intercept form of the equation of each line.
A) Slope = 2
y-intercept = -5
C) y  4  3( x  2)
B) Slope = 
9
y-intercept = 2
5
D) y  2  10( x  3)
37. Write the point-slope form of the equation of the line through the given point with the given slope.
A) through (4,-1) with slope = -2
B) through (1,-2) with slope = -3
38. Write the point-slope form of the equation of the line through the given points.
A) (0,-2) and (3,-3)
B) (4,-3) and (0,0)
39. Which of the following are proportional? (direct variation)
D) y  3x  14
C) y  3x
40. What is the equation of a vertical line that goes through (-3,4)?
41. What is the equation of a horizontal line that goes through (7,6) ?
Find the missing side of each right triangle.
42.
43.
44.
State if each is a right triangle.
45.
46.
Find the distance between each pair of points.
48.
49.
47.
Which of the following are Rational Numbers? Put a circle around them.
Which of the following are Irrational Numbers? Put a square around them.
50. π
51.
57.
58.
52. 2.1325817643…
̅
59. √
53.
√
61. √
60. 6
√
54.
55.
0
̅̅̅̅̅̅̅̅̅̅
62.
56. -10
63. 1
Evaluate. Round to the nearest tenth if necessary
64. √
66. √
65. √
67. √
Solve each equation.
68. √
69.
71. √
70.
Write each fraction as a decimal.
72.
73.
74.
75.
78. 0.11111…
79. 0.625
Write each decimal as a fraction.
76. 0.15
77. 0.2
80. 0.29
81. 0.3333…