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____ [38]
3 years ago
7

If f(x)= 3x^2+1 and g(x)= 1-x, what is the value of (f-g)(2)?

Mathematics
1 answer:
enyata [817]3 years ago
3 0

Answer:

14

Step-by-step explanation:

note that (f - g) = f(x) - g(x)

f(x) - g(x) = 3x² + 1 - (1 - x) = 3x² + 1 - 1 + x = 3x² + x

To evaluate (f - g)(2) substitute x = 2 into f(x) - g(x)

(f - g)(2) = 3(2)² + 2 = (3 × 4) + 2 = 12 + 2 = 14

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Umnica [9.8K]

Answer:

The solution to the system of linear equations is (1,9).

Step-by-step explanation:

The given system of linear equations

y=5x+4            ... (1)

y=-3x+12           .... (2)

Subtract equation (2) from equation (1) to eliminate y.

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On combining like terms, we get

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Divide both sides by 8.

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The value of x is 1.

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The value of y is 9.

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50 secs

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so 50sec is the answer
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3 years ago
Read 2 more answers
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