, g(x) = . Then the opposite graph represents both functions f & g .
Let functions f & g be : f(x) =Without calculators, And using the opposite graph and your mental logic only. Find the middle number in the Solution Set which satsfies the inequality
Hint : write down the Solution Set as an interval then find the middle number in this interval .
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The answer is − 0 . 5 because it is halfway between the two limits [ − 2 , 1 ] (see below).