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
Bumek [7]
3 years ago
10

Graph the linear equation in three plots: -x+2y=11

Mathematics
1 answer:
MariettaO [177]3 years ago
3 0

Answer:

<h2>In the attachment.</h2>

Step-by-step explanation:

Convert the given equation to the form y = mx + b:

-x+2y=11          <em>add x to both sides</em>

2y=x+11          <em>divide both sides by 2</em>

y=\dfrac{1}{2}x+\dfrac{11}{2}

It's a linear function.

We need only two points to plot the graph. Select any two x values, insert into the equation and calculate y values.

for x = 1

y=\dfrac{1}{2}(1)+\dfrac{11}{2}=\dfrac{1}{2}+\dfrac{11}{2}=\dfrac{12}{2}=6\to(1,\ 6)

for x = -5

y=\dfrac{1}{2}(-5)+\dfrac{11}{2}=-\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{6}{2}=3\to(-5,\ 3)

You might be interested in
John sold 4 big screen televisions during the month of May. He sold them for $1,289, $1,343, $2,123 and $969. Rounding to the ne
lesya692 [45]
The answer is $6700

When you round these numbers to the nearest 100, you get $1300, $1300, $2100 and $1000. When you add these numbers together you get $6700.

Hope this helps!
8 0
3 years ago
Let f(x)=2/x-3. Find f^-1(x)
KonstantinChe [14]

Answer:

Two questions:

Question 1: f^{-1}(x)=? given f(x)=\frac{2}{x}-3.

Answer 1: f^{-1}(x)=\frac{2}{x+3}

Question 2: f^{-1}(x)=? given f(x)=\frac{2}{x-3}.

Answer 2: f^{-1}(x)=\frac{2}{x}+3

Step-by-step explanation:

So f^{-1} is used in most classes to represent the inverse function of f.

The inverse when graphed is a reflection through the y=x line. The ordered pairs (a,b) on f implies (b,a) are on f^{-1}.

This means we really just need to swap x and y.

Since we want to write as a function of x we will need to solve for y again.

Question 1:

y=\frac{2}{x}-3

Swap x and y:

x=\frac{2}{y}-3

We want to solve for y.

Add 3 on both sides:

x+3=\frac{2}{y}

Make the left hand side a fraction so we can cross-multiply:

\frac{x+3}{1}=\frac{2}{y}

Cross multiply:

y(x+3)=1(2)

Simplify right hand side:

y(x+3)=2

Divide both sides by (x+3):

y=\frac{2}{x+3}

So f^{-1}(x)=\frac{2}{x+3}.

Question 2:

y=\frac{2}{x-3}

Swap x and y:

x=\frac{2}{y-3}

Make left hand side a fraction so we can cross multiply:

\frac{x}{1}=\frac{2}{y-3}

Cross multiply:

(y-3)x=1(2)

We have to distribute here:

yx-3x=2

Add 3x on both sides:

yx=2+3x

Divide boht sides by x:

y=\frac{2+3x}{x}

You could probably stop here but you could also simplify a little.

Separate the fraction into two terms since you have 2 terms on top bottom being dividing by x:

y=\frac{2}{x}+\frac{3x}{x}

Simplify second fraction x/x=1:

y=\frac{2}{x}+3

So f^{-1}(x)=\frac{2}{x}+3.

7 0
3 years ago
Pls need this asap will give brainliest need it right now!!
Lorico [155]

Answer:

2/5

Step-by-step explanation:

add all marbles together: 10 marbles

since only 4 are red, the fraction would be 4/10

4/10 can be simplified to 2/5

3 0
3 years ago
1. In a parallelogram ABCD, AD=12cm. if the altitudes corresponding
olganol [36]

Answer:

10.5 cm

Step-by-step explanation:

area of parallelogram = Bh

12 x 7 = AB x 8

AB = 12x7 / 8 = 21/2 = 10.5

6 0
2 years ago
What is 3/-4 ÷ (-2 1/3) ​
attashe74 [19]

Answer:

9/28

Step-by-step explanation:

First transform -2 1/3 to -7/3. Then find the reciprocal of -7/3 which is -3/7. Multiply that to 3/-4 which becomes -9/-28 which equals 9/28.

5 0
4 years ago
Read 2 more answers
Other questions:
  • The difference between the two numbers is 4. The quotient of the two numbers is 2. What are the two numbers?
    9·2 answers
  • You are given n = 5 measurements: 5, 3, 3, 8, 8. (a) calculate the sample mean, x. (enter your answer to one decimal place.)
    5·1 answer
  • A dilation has been performed on ΔABC. The length of segment BC is 5 cm and the length of segment BC' is 30 cm. If segment AC ha
    6·1 answer
  • Please help!! thanks you whoever can answer this for me &lt;3
    5·2 answers
  • What is the solution to x^3 +4x^2 &gt; x + 4
    11·2 answers
  • Marco bought a box of nails at a hardware store for $3.60. If the box contains 180 nails, the equation 3.60 = 180k can be used t
    9·2 answers
  • Which numbers are solutions of the inequality? X &lt; –8; –10, –5, 0 –10 –10, –5, and 0 0 –5 and
    5·1 answer
  • What is math? (Please do not tell me what it is used for, here. You should respond by telling me what it is.)
    9·1 answer
  • If a person walks 1/2 mile in 1/4 hour how far will they walk in 2 hours?
    14·2 answers
  • What value of x makes the equation 8(1.5x - 6) = 2x - 0.5(24 - 16x? true?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!