6. If f(x) = –8 – 5x, what is f(–4)? f(–4) = 12 f(–4) = –28 f(–4) = –12 f(–4) = 28
2 answers:
For this case we have a function of the form:
where:

We want to know the value of the function when
that is, 
Substituting we have:

We have by law of multilplication of signs that:

Different signs are subtracted and the sign of the major is placed.

Answer:
Option A
Answer:
f (-4) = 12.
Step-by-step explanation:
If f(x) = –8 – 5x, what is f(–4)?
substitute -4 to ur value of x
that is f(-4)= -8 -5(-4)
f(-4) = -8+20
f(-4) =12.
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Answer:
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Step-by-step explanation:
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No, because it needs to equal 25, not 24.
<span>X-Y=4,
X+Y=2
-------------add
2x = 6
x = 3
X - Y =4
3 - Y = 4
Y = 3 - 4
Y = -1
solution (3 , -1)</span>