jika f(x) = 2^x+1, maka nilai dari f(5) adalahFX = 2 ^ x + 1
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Relasi dan fungsi
f(x) = 2^x + 1
f(5) = ..?
Penyelesaian
f(5) = 2^5 + 1
f(5) = (2 × 2 × 2 × 2 × 2) + 1
f(5) = ((2 × 2) × 2 × 2 × 2) + 1
f(5) = ((4 × 2) × 2 × 2) + 1
f(5) = ((8 × 2) × 2) + 1
f(5) = (16 × 2) + 1
f(5) = 32 + 1
f(5) = 33
[tex]f(x) = {2}^{x} + 1 \\ f(5) = {2}^{5} + 1[/tex]
[tex] = 32 + 1 \\ = 33[/tex]
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