मराठी

If f(x) = 3x + a and f(1) = 7 find a and f(4).

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प्रश्न

If f(x) = 3x + a and f(1) = 7 find a and f(4).

बेरीज
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उत्तर

f(x) = 3x + a
f(1) = 7
∴ 3(1) + a = 7
∴ a = 7 – 3 = 4
∴ f(x) = 3x + 4
∴ f(4) = 3(4) + 4 = 12 + 4 = 16

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पाठ 2: Functions - Miscellaneous Exercise 2 [पृष्ठ ३२]

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