Math 7 4Q Benchmark Test Study Guide – Key
1.) Mean = 16.1; Median = 15; Mode = 15; Range = 17
2.) Set 3 & 4
3.) Construct the box-and-whisker plot using: LE = 5, LQ = 8, Median = 10, UQ = 13, UE = 15.
4.) 127
5.) Positive correlation. As the time studied increases, the test scores increase.
6.) 25y + 19x
7.) 3a + 10b
8.) 8 hours
9.) 110 miles (85 paid miles and 25 free miles)
10.) n = 21
11.) Possible answer: (0,5), (1,7), (2,9), (3,11)
12.) 20
13.) 8 14.)
-5 -4 -3 -2 -1 0 1 2 3 4 5
15.) -27/64
16.) -3
17.) x = -10
18.) w = 6
19.) n – 5 = 14
20.) x = -4
21.) x + x + x + 4 = 3x + 4
22.) circles and triangle
23.) draw a transversal line through line AB
24.) are the same shape, have corresponding angles that are congruent, and have corresponding side
that are proportional
25.) rectangular prism and/or cylinder
26.) rectangle, rectangle, cone
27.) Shape
Vertical
horizontal
Square pyramid
Cone
Cube
Cylinder
28.)
29.)
30.)
31.)
32.)
33.)
34.)
35.)
36.)
37.)
38.)
39.)
40.)
41.)
42.)
Triangle
Triangle
Square
Rectangle
Square
Circle
Square
Circle
Rectangle and triangle; cannot be circle, square, trapezoid, ect.
Sketch perpendicular bisector
Sketch angle bisector
C’ (-3,3)
A’ (-2,2), B’ (-3,-2), C’ (-1,-1)
C’ (7,7)
D
½
4:25
4:5
9:16 = 0.5625
(1,2) (-2,1.5) (2.5,3)
(5,12.5)
y = 48/x and y = 6
y = 4x and y = 12
43.)
44.)
45.)
Direct variation – as x increases y increases; as x decreases y decreases by the same factor.
Indirect variation – as x increases y decreases; as x decreases, y increases by the same factor.
Indirect; direct
Indirect variation because as the number of students given the scholarship increases, the amount
each receives decreases.
28.6 mph
46.)
47.)
Variation
Direct
Equation Table
Y = kx
as x increases y increases; as x
decreases y decreases by the same
factor.
Indirect
Y = k/x
as x increases y decreases; as x
decreases, y increases by the same
factor.
48.) Answers will vary.
Graph
A straight line that
goes through the
origin.
Curved, does not touch
the y or x axis
Movement
As one increases
the other
increases
As one increase
the other
decreases