<img src="https://tex.z-dn.net/?f=what%20%5C%3A%20is%20%5C%3A%20f%28x%29%20%3D%202x%20-%201%20%5C%3A%20when%20%5C%3A%20x%20%5C%3

4 years ago

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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