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Phoenix [80]
4 years ago
11

A%20%20%3D%20%20-%201" id="TexFormula1" title="what \: is \: f(x) = 2x - 1 \: when \: x \: = - 1" alt="what \: is \: f(x) = 2x - 1 \: when \: x \: = - 1" align="absmiddle" class="latex-formula">
​
Geography
2 answers:
kvasek [131]4 years ago
6 0
F ( x ) = 2 x - 1

Substitute

F * -1 = 2 * -1

Cancel one

F = 2
lisabon 2012 [21]4 years ago
5 0
F(x) = 2x - 1
f(-1) = 2(-1) - 1
f(-1) = -2 - 1
f(-1) = -3
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