Given f(x) = –5x – 1, find f(a – 1).?

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2006-12-10 12:38:05 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

f(a - 1) = -5(a - 1) - 1 = -5a + 5 - 1 = -5a + 4 .

2006-12-10 13:14:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Substitute a -1 wherever you see x.
So, f(a - 1) = -5(a - 1) - 1 = -5a + 5 - 1 = -5a + 4

2006-12-10 20:51:53 · answer #2 · answered by falzoon 7 · 0⤊ 0⤋

f(a-1) = -5(a-1) -1

or (simplified)

f(a-1) = -5a + 4

2006-12-10 21:59:56 · answer #3 · answered by Jacob M 1 · 0⤊ 0⤋