Summer Mathematics Prep Chesterfield County Public Schools Department of Mathematics Entering Algebra 2 Summer Mathematics Prep documents provide self-directed student review, practice, and preparation for high school mathematics courses. Students are encouraged to first attempt these review problems on their own. Checking accuracy against the solution document can help students identify their own strengths and areas of challenge. Students can utilize instructional online resources to address areas of challenge. All of these resources can be found at http://mychesterfieldschools.com/about/instruction/other-academicprograms/summer-programs/. Basic Properties of Real Numbers Identify the property of real numbers illustrated for each of the following: 1) 4 x 2 14 x 2 x2 x 7 3) If x 1 5) 2) 12 x x 12 0 4 4 then x 1 3 3 4) If 3 c and c d , then 3 d . 2 x 9 2 x 9 Simplifying and Evaluating Expressions Simplify each of the following expressions: 6) 10 4 2 7) 36 4 12 6 8) ( - 5)2 9) (36 4) (12 6) 10) 6 208 8 Evaluate each expression using the given values: 9r qr 2(b 2a ) ; a = 3, b = 4 12) ; q = -2, r = 4 2b a q Basic Laws of Exponents Simplify each of the following using the properties of exponents: 3 4x3 5 2 x x 14) 15) 16) 2x 5 8 10 x 11) 18) x 2 9 19) 3x 0 13) y 2 y 5 6x ; x = 10, y = 3 x y 17) 4 x5 6 x5 20) (4 x)0 Simplifying Radicals Simplify each of the following radicals: 21) 128 Chesterfield County Public Schools Department of Mathematics 22) 32x 20 y 25 23) 4 3 27 24) 3 216a6 Page 1 of 5 May 2012 Slope Calculate the slope of the line passing through the given points: 25) (2, 3) and (7, 5) 26) (2, 7) and (6, 7) 27) State the slope of the line: 4 y 3 x 8 . 28) State the slope of the line x 3 . Writing Equations of Lines slope intercept form y mx b standard form (ax by c) 29) State the equation of the line pictured. 30) Write the equation of the line that has a slope of 2 and passes through the point (8, 6). 31) Write the equation of a line in standard form that passes through (5, 3) and (0, 2). 32) Write the equation of a line that passes through (4, 3) and (4, 7). 33) Write the equation of a line that passes through the point (1, 1) and is parallel to the line y 5 x 3 . (Reminder – parallel lines have equal slopes) Graphing Functions Graph each function on the graph provided. 34) Graph y 9 Chesterfield County Public Schools Department of Mathematics 35) Graph y 3x 2 Page 2 of 5 May 2012 36) Graph 2 x 4 y 8 37) Graph y x 2 5x 6 Operations with Polynomials Simplify each of the following polynomial expressions. 38) (3x 2 4 x 5) (6 x 2 5 x 8) 39) (4 x 3 5 x 19) (3x 3 6 x 12) 40) ( x 1)( 4 x 1) 41) (4x - 3) 2 42) (5x - 3)(5x + 3) 43) 5x(3x2 - x + 3) Solving Linear Equations Solve each equation for the variable. 44) 2 y 16 3y 6 46) 2x 4 8 3 48) 7a 4 13 2 3 6 45) 7 4 z 2(2 z 3) 47) 3.2(3 y 4) 4.6( y 3) Solving Systems of Linear Equations Solve each system using an appropriate method. Show all work. x 2 y 1 2 x 4 y 6 49) 50) 3x 2 y 1 3x 2 y 5 Chesterfield County Public Schools Department of Mathematics Page 3 of 5 May 2012 Factoring Factor completely each of the following expressions. 51) 2 x5 16x 3 52) x 2 64 53) x 2 3x 18 54) 3x 2 7 x 6 Solve by Factoring 55) x 2 12 x 35 = 0 56) x 2 13x 36 = 0 Statistics x x element ofthe data set z-score ( z ) mean of the data set standard deviation of the data set 57) A set of Mathematics exam scores has a mean of 70 and a standard deviation of 8. What is the z-score of a student receiving a 78? 58) A set of English exam scores has a mean of 74 and a standard deviation of 16. What is the z-score of a student receiving a 78? 59) For which exam (Math or English) does the score of 78 have a higher standing? 60) What would be the exam score of an English student with a z-score of 0.94? Chesterfield County Public Schools Department of Mathematics Page 4 of 5 May 2012 Chesterfield County Public Schools Department of Mathematics Page 5 of 5 May 2012