Due Date: January 12, 2011 Mrs. Von Stein

Name______Date: ______Due Date: January 12, 2011 Mrs. von Stein Algebra Weekly Assignment #10

1. Which verbal expression represents 2(n - 6) ? (b) [A] two times the quantity six less than n [B] two times n minus six (c) [C] two times the quantity n less than six [D] two times six minus n 6. If h represents a number, which equation is a correct translation of “Sixty more than 9 times a number is 2. What is an equation of the line that passes 375”? through the point (3, -1) and has a slope of 2? (a) 9h = 375 (c) 9h + 60 = 375 (a) y= 2x + 5 (c) y = 2x -4 (b) 9h – 60 = 375 (d) 60h + 9 = 375 (b) y = 2x - 1 (d) y = 2x -7

3. Which ordered pair is a solution to the equation 7. Which equation represents a line parallel to 3y + 4 = 2x. the x-axis?

A. (2, 5) C. (5, 2) [A] x = 3 [B] x = 3y B. (0, -2) D. (-2, 1) [C] y = -5 [D] y = -5x

4. There is a negative correlation between the 8. What is the value of f(x) = -3 –x when x = -7? number of hours a student watches television and his or her social studies test score. Which [A] -10 [C] 4 scatter plot below displays this correlation? [B] -4 [D] 10 (a) (b)

9. What is the value of the expression |-5x + 12| when x = 5

(a) -37 (c) 13 (c) (d) (b) -13 (d) 37

10. What is the solution for y in the given system?

5. Which statement below is the correct set-builder notation (a) -1 (c) 0 for the situation depicted in this number line graph? (b) 1 (d) 6

(a) 12. Sophie measured a piece of paper to be 21.7 Directions: Solve each question and show all cm by 28.5 cm. The piece of paper is actually work. 21.6 cm by 28.4 cm. Determine the number of square centimeters in the area of the piece 11. Find the equation of the line that passes of paper using Sophie's measurements. through the point (0,9) and (5,2). Determine the number of square centimeters in the actual area of the piece of paper.

Determine the relative error in calculating the area. Express your answer as a decimal to the nearest thousandth.

13. (a) Solve for y:

14. On the grid below, solve the system of equations graphically for x and y. 4x – 2y = 10 y = -2x – 1

(b) Solve for x: 4(2x + 1) > 28