1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga_2 [115]
3 years ago
12

Rewrite x - 2y = 8 using function notation. A) x - 2f(x) = 8 B) f(x) = -x + 8 C) f(x) = 2x + 8 D) f(x) = 1 2 x - 4

Mathematics
2 answers:
Lostsunrise [7]3 years ago
8 0
That would be f(x) =  1/2 x - 4
Valentin [98]3 years ago
4 0

Answer:

D

Step-by-step explanation:

A first order equation has the following format:

y = ax + b

In function notation, we use y = f(x), so:

f(x) = ax + b

In this problem:

x - 2y = 8

(-2y = 8 - x)*(-1)

2y = x - 8

y = (1/2)x - 4

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

So the correct answer is

D

You might be interested in
Give a rule of the piecewise-defined function.
nataly862011 [7]

The equation of the piecewise function is f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The piecewise function</h3>

On the graph, we have:

  • y = 3 for all x values not more than -1
  • y = -1 for all values greater than 2

Hence, the piecewise function is:

f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The domain of the function</h3>

This is the set of input values

In (a), we have:

x ≤ -1 and x > 2

Hence, the domain is (∞, 3] u (2, ∞)

<h3>The range of the function</h3>

This is the set of output values

In (a), we have:

f(x) = 3 and f(x) -1

Hence, the range is [3] u (-1)

Read more about piecewise function at:

brainly.com/question/18859540

#SPJ1

5 0
1 year ago
The length of the red line segment is 8 and the length of the blue line segment is 4. How long is the major axis of the eclipse?
liraira [26]

The major axis of the eclipse is 12 units long

The given parameters can be represented as:

Red = 8

Blue = 4

See attachment for illustration

To solve this question, we make use of the following theorem

The distance between a point and the foci sums up to the major axis

This translates to:

Major\ axis = Red + Blue

Major\ axis = 8 + 4

Major\ axis = 12

7 0
2 years ago
Please hellllllllppppppppppppppppppppppppppp
vitfil [10]

Answer:

21^{10}

Step-by-step explanation:

First, multiply the 3 and the 7 together, and then "multiply" the exponents -8 and 3. (However, when "multiplying exponents, you're really just adding them together: -8 + 5)

(21^{-5})^2

Then, multiply the -5 and -2 together, giving you:

21^{10}

5 0
3 years ago
What decimal is equal to 31/100
BlackZzzverrR [31]

Answer:

0.31

Step-by-step explanation:

So if you divide 31 by 100 all you have to do is move the decimal from right to left the number of zeros you have. Here we have 2 zeros so we move from right to left twice.

0.31

4 0
3 years ago
(cos6x+6cos4x+15cos2x+10)/(cos5x+5cos3x+10cosx)=?
Tasya [4]
Do you mean <span><span><span><span>cos6</span>x+6<span>cos4</span>x+15<span>cos2</span>x+10</span><span><span>cos5</span>x+5<span>cos3</span>x+10cosx</span></span>  ?</span> or <span><span><span>cos6x+6cos4x+15cos2x+10</span><span>cos5x+5cos3x+10cosx</span></span>  ?</span> or <span><span><span><span>cos6</span>x+6<span>cos4</span>x+15<span>cos2</span>x+10</span><span><span>cos5</span>x</span></span>+5<span>cos3</span>x+10cosx  ?</span> or <span><span><span>cos6x+6cos4x+15cos2x+10</span><span>cos5x</span></span>+5cos3x+10cosx  <span>?</span></span>
7 0
3 years ago
Other questions:
  • A baker used 4 cups of flour to make 5 batches of brownie. How many cups of flour does the baker need to make 1 batch of brownie
    13·2 answers
  • Help please!
    6·2 answers
  • A person gets on and off a bathroom scale four times. The four readings (in pounds) are 148, 151, 150, and 152. Each time after
    10·1 answer
  • Ordered pair for -x+3y&lt;-3
    6·1 answer
  • What is the 13th term in the arithmetic sequence described by this explicit formula? a(n) = 84 + (n – 1)(–6)
    10·1 answer
  • A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
    14·2 answers
  • A movie theater sells popcorn and fountain drinks. Brett buys 1 popcorn bucket and 3 fountain drinks for his family, and pays $9
    6·1 answer
  • Materials
    7·1 answer
  • Solve the equation <br><img src="https://tex.z-dn.net/?f=25%20-%203x%20%3D%2040" id="TexFormula1" title="25 - 3x = 40" alt="25 -
    8·2 answers
  • PLS HELPPPPPP i dont know how to do question 17,18,24
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!