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McGraw Hill Integrated II, 2012 View details

10. Roots and Zeros

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Exercise 75 Page 79

Construct a table to find all of the possible values of the expression for each of the values from the replacement set.

± 1, ± 7, ± 1/2, ± 7/2, ± 1/3, ± 7/3, ± 1/6, ± 7/6

Practice makes perfect

To find all of the possible values of ± ba, replace both variables with each value from the replacement sets and simplify the expression.

±	a	b	±b/a	Simplify
+	1	1	+1/1	1
-	1	1	-1/1	-1
+	1	7	+7/1	7
-	1	7	-7/1	-7
+	2	1	+1/2	1/2
-	2	1	-1/2	-1/2
+	2	7	+7/2	7/2
-	2	7	-7/2	-7/2
+	3	1	+1/3	1/3
-	3	1	-1/3	-1/3
+	3	7	+7/3	7/3
-	3	7	-7/3	-7/3
+	6	1	+1/6	1/6
-	6	1	-1/6	-1/6
+	6	7	+7/6	7/6
-	6	7	-7/6	-7/6