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If f(x) = –3x + 2, find f(–5).
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f(x) = -3x + 2, so to find f(-5), we substitute -5 for x:
f(-5) = -3(-5) + 2
Simplifying the multiplication and addition:
f(-5) = 15 + 2
f(-5) = 17
Therefore, f(-5) = 17.