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If f(x) = {x2+3x≤25x+7x>2, then find f(3) - Mathematics and Statistics

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Question

If f(x) = `{(x^2 + 3, x ≤ 2),(5x + 7, x > 2):}`, then find f(3)

Sum

Solution

f(x) = `{(x^2 + 3, x ≤ 2),(5x + 7, x > 2):}`

f(3) = 5(3) + 7

= 15 + 7

= 22

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Algebra of Functions
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Chapter 6: Functions - Exercise 6.2 [Page 128]

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