Mid-term Review Sheet #3 Integrated Algebra 2015-2016 Name: _________________________________ Period: _______________ Date: ___________ 1. If x = -2 and y = -3, evaluate: 2x2y2 2. a) Which is irrational? (a) 3/4 (b) 100 (c) 10 (d) .7 (b) 25 (c) 49 (d) π (b) 7 (c) (d) 2 b) Which is irrational? (a) 2/3 3. Which is rational? (a) π 4. What is the value of x? 9 3(x - 2) = 19 - 2x 5. Name each property shown below: a) 3(x - y) = 3x - 3y ________________________ b) 3x + y = y + 3x ________________________ c) (3x)(y) = (y)(3x) _______________________ d) (3x)(y) = (3)(xy) _______________________ 6. a) If x represents the first consecutive integer, what are the let statements that would represent the second and third consecutive integers? Let x = 1st ci Let __________________ = 2nd ci Let __________________ = 3rd ci b) If x represents the first consecutive even integer, what are the let statements that would represent the second and third consecutive even integers? Let x = 1st cei Let __________________ = 2nd cei Let __________________ = 3rd cei c) If x represents the first consecutive odd integer, what are the let statements that would represent the second and third consecutive odd integers? Let x = 1st coi Let __________________ = 2nd coi Let __________________ = 3rd coi 7. Simplify the following expressions (without your calculator!) a) 4[3 + 8(-2)] b) 5 + 3[4 – 6(-2)] c) 12 –2[6 – 8(-7)] 8. a) Solve for x: x 12 6 6 b) What is the value of x in the equation: 5 x 25 4 9. a) Solve for x: 4(x – 2) = 6x –10 b) What is the value of x: 5(x + 8) = 3(x – 12) 10. a) Define the following: Domain _________________________ Range ____________________________ b) Given the following set: { (1, 3), (4, 5), (-4, 10), (-7, -9), (3, 5), (1, 10) } List the domain {___________________________________________________} List the range {___________________________________________________} Is this a function? Why or why not? ____________________________________________ c) From the graph below: List the domain {___________________________________________________} List the range {___________________________________________________} List the y-intercept(s) ________________________________________________ Is this a function? Why or why not? ____________________________________________ 11. Which sequence below has a common difference of 2? a) b) 10, 8, 6, 4, … 1, 2, 4, 6, … c) 3, 5, 7, 9,… d) 1, 2, 4, 8,… 12. Which sequence below has a common difference of -3? a) 9, 6, 3, 0,… b) 1, -3, 9, -27, … c) -3, 0, 3, 6, … d) 0, -3, -6, -8,… 13. a) Write four terms of an arithmetic sequence whose first term is 2 and has a common difference of 1: ________________________________________________________________________ b) Write four terms of an arithmetic sequence whose first term is -3 and has a common difference of -2: ________________________________________________________________________ c) Write four terms of an arithmetic sequence whose first term is -1 and has a common difference of -6: ________________________________________________________________________