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Simora [160]
1 year ago
11

Given the function f(x)=2x-1 Evaluate: a) 2f(x) b) f(2x)​

Mathematics
1 answer:
Dmitrij [34]1 year ago
3 0

Answer:

a) 2f(x) = 4x - 2

b) f(2x) = 4x - 1

Explanation:

Given function:

  • f(x) = 2x - 1

a) 2f(x)

2f(x) = 2(2x - 1)

       = 4x - 2

b) f(2x)

f(2x) = 2(2x) - 1

       = 4x - 1

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Semenov [28]

Answer:

(5,2,2)

Step-by-step explanation:

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2*(2x-4y-z)=0*2

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Add this to the first equation to eliminate z

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-------------------------

x -4y = -3

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x - 4(3x-13) = -3

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x - 12x +52 = -3

Combine like terms

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Subtract 52 from each side

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Divide by -11

-11x/-11 = -55/-11

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Now we can solve for y

y =3x-13

y =3*5 -13

y = 15-13

y=2

Now we need to find z

2x-4y-z=0

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10-8 -z=0

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2 years ago
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elixir [45]

Answer:

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Step-by-step explanation:

<u>slope- intercept form</u>

y= mx +c, where m is the slope and c is the y-intercept.

Given that the slope is -1, m= -1.

Substitute m= -1 into the equation:

y= -x +c

To find the value of c, substitute a pair of coordinates into the equation.

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divide 6 by sqrt2 to find x, and then rationalize for it to become 6sqrt2/2, which would simplify even further to 3sqrt2
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2 years ago
Identify each sequence as arithmetic or geometric. Explain your answer, and write an explicit formula for the
NeX [460]

Answer:

Geometric Sequence

Step-by-step explanation:

In this case it is Geometric Sequence as it has a common ratio of 5

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so if we take the third term we will calculate as follows:

50 = 2(r)∧3-1

50÷2 = r∧2

√25= r

r=5

7 0
3 years ago
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