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Lelechka [254]
3 years ago
13

If f (x) = 2x + 1, then, f (3)

Mathematics
2 answers:
AysviL [449]3 years ago
8 0

Answer:

f=7

Step-by-step explanation:

f(3)= 2(3)+1

f(3)=6+1

F(3)=7

Mashutka [201]3 years ago
3 0

Answer:

x=1

Step-by-step explanation:

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Write the linear function for the given function values.<br> f(-2)=9 and f(6)=7
BigorU [14]

Answer:

y = -\frac14x + 8.5

Step-by-step explanation:

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A linear function is written in the form of y = mx + b, where m is the slope and b is the y-intercept.

Each of these expressions can be converted to coordinate form, (-2,9) and (6,7).

<h2>Slope</h2>

Slope can be calculated by the difference in the x-values divided by the difference in the y-values.

Solve

  • \frac{9 - 6}{-2 - 6}
  • \frac{2}{-8}
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The slope is -1/4.

<h2 /><h2>Y-intercept</h2>

The y-intercept is found by plugging in the x and y values of a coordinate and the slope and then solving for b.

Solve

  • y = mx + b
  • 9 = -\frac14(-2) + b
  • 9 = 0.5 + b
  • 8.5 = b

<h2>Equation</h2>

We can find the equation by simply plugging in all the values that we found.

Equation: y = -\frac14x + 8.5

6 0
2 years ago
Evaluate -3x^3 - 4x for x=-1.
Ivenika [448]

Answer:

-x.(3x^2+4)

Step-by-step explanation:

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6 0
3 years ago
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If LN=54 and LM=31, find MN
kirza4 [7]
In this item, it is unfortunate that a figure, drawing, or illustration is not given. To be able to answer this, it is assumed that these segments are collinear. Points L, M, and N are collinear, and that L lies between MN. 

The length of the whole segment MN is the sum of the length of the subsegments, LN and LM. This can be mathematically expressed,
             LN + LM = MN

We are given with the lengths of the smalller segments and substituting the known values,
             MN = 54 + 31
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<em>ANSWER: MN = 85</em>
7 0
3 years ago
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barxatty [35]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
Robert has 1/4 of a bag of chips. He wants to share the remaining chips with himself and 2 friends. What fraction of a bag of ch
Aleksandr [31]

Answer:

1/12

Step-by-step explanation:

1/4÷ 3= 1/4 x1/3=1/12

5 0
3 years ago
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