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daser333 [38]
3 years ago
11

U need help ASP .f(x)=1-3X and g (x)=x+4 calculate gf(-2)​

Mathematics
1 answer:
IgorC [24]3 years ago
7 0

Answer:

gf (-2) = 11

Step-by-step explanation:

f(x) = 1 - 3x \\ g(x) = x + 4 \\ gf( - 2) = ..

gf = .. \\ g(1 - 3x) \\  = 1 - 3x + 4 \\  =  - 3x + 5 \\ gf =  - 3x + 5

gf( - 2) =  - 3( - 2) + 5 \\  = 6 + 5 = 11

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Y=8-2x when x=8 the value of y
Lera25 [3.4K]

Answer:

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Step-by-step explanation:

Given that x and y are two variables.  they are related by the function

y =8-2x

Since x and y are related, given one value we can find the other using this equation.

In our question, given that x =8

Substitute x value in the equation

y = 8-2x

y =8-2(8) = -8

Hence answer is -8:


Verify:  We verify by putting -8 for y and check whether x =8

-8=8-2x

Or 2x = 16

x =8

Verified

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Answer:

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wolverine [178]

Answer:

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Step-by-step explanation:

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