2015 PRE-ALGEBRA SEMESTER TEST REVIEW

All real numbers No solution 2 1 (1) What is the value of t that makes the equation true? 3(4 – t) + 6t = 17 – 2t All real numbers No solution 2 1 Answer is D

(2)Graph the linear function y = -2x + 4 Answer is A A→ B → C↗ D→

(3)Graph a line with a y-intercept of -4 and a slope of -⅘.

(4) Write an equation in slope-intercept form that is parallel to the line below. y = -2x + 6 y = 2x y = 2x + 6 y = 4x + 2 Answer is C

(5)Which statement describes the relationship between the line graphs of the equations below? y = ⅛x + 4 y = -2x  Answer is D (A) The line graphs are the same line. (B) The line graphs are parallel lines. (C) The line graphs are perpendicular lines. (D)The line graphs intersect but are not perpendicular.

(6) If the denominator is not zero, which fraction is equivalent to the expression below?   Answer is d³ 3

(7) Which of the following is equivalent to 10⁶ • 102 • 105 ? 1060 1013 103 109 Answer is B

(8) The people at the Hester Family Reunion ate 27⅔ chocolate pies (8) The people at the Hester Family Reunion ate  27⅔ chocolate pies. Each pie had 6 pieces. How many pieces of chocolate pie were eaten? 160 162 166 168 Answer is C

(9) Angela has memorized 5 hard rock songs, 11 blues songs, and 4 country songs to perform at a singing competition. If one song will be selected at random by the judges for Angela to perform, what is the probability that a hard rock song will be selected? Answer is A 1/4 2/8 5/20 1/5

The median for the total number of hits to the website is 39. (10) Mr. Roberts set up a homework help website for his students. This stem-and-leaf plot shows the number of hits Mr. Roberts website received over 27 days. Which conclusion can be drawn from this stem-and- leaf plot? Answer is D The median for the total number of hits to the website is 39. The mode for the total number of hits to the website per day was 67. For 73% of the days, 32 or more hits to the website occurred. The mean for the total number of hits to the website per day is 44.

(11) Jackie noticed large storm clouds developing one afternoon so she decided to record the change in temperature before, during, and after the storm. The graph below shows the results over the six-hour period of time.   According to the graph, how much did the temperature drop between 1:00 P.M. and 3:00 P.M.? 5° 7° 9° 11° Answer is C

(12) The Valentine family has constructed the circle chart shown below to help budget their money. If they make about $550 per week, about how much money goes to savings each year? $30 $500 $1,400 $2,750 Answer is C

(13) Triangle ABC is similar to triangle XYZ (13) Triangle ABC is similar to triangle XYZ. If <ABC is 65° and <XYZ is 75°, What is the measure of <ACB?   15° 25° 40° 180° ANSWER IS C

(14) What is the volume, in cubic feet, of the rectangular prism shown below? V=lwh    12 88 84 48 ANSWER IS D

(15) What is the volume, in cubic cm, of the figure shown below? What would happen to the volume if you cut the radius in half? Answer would be cut by ¼ or 196.25cm³ (15) What is the volume, in cubic cm, of the figure shown below?    V = πr²h ANSWER IS 785cm³

(16) What is the perimeter, in cm, of the rectangle below? 37 44 59 121 ANSWER IS B 10.3 cm 11.7 cm

(17) In the diagram below, lines J and line K are parallel and are cut by the transversal L.  The measure of <3 is 99°. What is the measure of <7? 99° 180° 81° 101° ANSWER IS A

(18) What would the measure of angle MAT be? 20° 73° 93° 107° 87⁰ ANSWER IS C

Parallelogram Square Rhombus Trapezoid (19) Which special quadrilateral could be constructed with side lengths shown below?         _             _                  _                     2 cm      2 cm      7 cm     7 cm   Parallelogram Square Rhombus Trapezoid ANSWER IS A

(20) Find the area of the figure below in square cm. 26 80 88 92 3 cm 8 cm 5 cm 10 cm ANSWER IS D

(21) What is length, in cm, of r? 25 24 17 7 24 cm 7 cm 48 cm ANSWER IS D

(22) Name the transformation. (A) Rotation (B) Dilation (C) Translation (D) Reflection Answer is A

(23) What type of scatter plot is below? (A) Weak Positive (B) Strong Positive (C) Weak Negative (D) Strong Positive Answer is C

(24) Which number is irrational? (A) ∏ (B) -3.5 (C) .345345345… (D) -7/6 Answer is A