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Workbook

c. 2 x  x 2  d. 2x-6 + 9-3x £ x-3 +24
2

12  3 1  1


e. 2 x f. x 2 6

9) Write an algebraic expression equivalent to each the expression given below.

a. All real numbers whose distance from -3 is less than 4.

b. All real numbers whose distance from 2 is at most 13

c. All real numbers whose distance from 0 is greater than 7

d. All real number whose distance from 0 is at least 6

10) The length of a board is measured to be 32,3 cm. The maximum measurement error is 0,2 cm.

Write an absolute value inequality that represents the range for the length of the board, x.

11)The width, w, of a bolt is supposed to be 2 cm but may have 0,01 cm margin of error. Solve
w 2 0,01  and interpret the solution to the inequality in the context of this problem.

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