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
fenix001 [56]
2 years ago
8

The following graph shows a proportional relationship.

Mathematics
1 answer:
dem82 [27]2 years ago
7 0

Answer:

k=2

Step-by-step explanation:

The constant of proportionality is given as  k=\frac{y}{x} .

Notice that when x=2 it follows that y=4.

Substitute x=2 and y=4 into the formula for the constant:

k=\frac{4}{2}=2 .

Therefore, the constant is equal to 2.

You might be interested in
Please could you explain this step by step I’m really stuck.
allochka39001 [22]

Answer:

x = -2.5
x = 2

Step-by-step explanation:

Hello!

We can remove the denominators by multiplying everything by it.

Solve:

  • \frac{5}{x + 3} + \frac4{x + 2} = 2
  • 5 + \frac{4(x + 3)}{x + 2} = 2(x + 3)
  • 5 + \frac{4x + 12}{x + 2} = 2x + 6
  • 5(x + 2) +4x + 12 = (2x + 6)(x + 2)
  • 5x + 10 + 4x + 12 = 2x^2 + 6x + 4x + 12
  • 9x + 22 = 2x^2 + 10x + 12

Let's make one side equal to 0.

  • 0 = 2x^2 + x - 10

Solve by factoring, and then the zero product property.

  • 0 = 2x^2 + x - 10\\

Multiply 2 and -10. You get -20. Think of two number that multiply to -20, and add to 1. If we think about the standard form of a quadratic, ax^2 + bx + c, think two numbers that equal "ac" and add up to "b".

  • 0 = 2x^2 - 4x + 5x - 10
  • 0 = 2x(x - 2) + 5(x - 2)
  • 0 = (2x + 5)(x - 2)

Using the zero product property, set each factor to 0 and solve for x.

  1. 2x + 5 = 0
    2x = -5
    x = -5/2 = -2.5
  2. x - 2 = 0
    x = 2

The two answers are x = -2.5, and x = 2.

3 0
2 years ago
Read 2 more answers
-3x + 14 = 7x - 7<br> Jelppppppp
9966 [12]

Step-by-step explanation:

yeah she be correct 2.1

6 0
3 years ago
A parallelogram has
exis [7]

Answer:

Step-by-step explanation:

Yes it is

5 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form of the line that passes through the points (7, – 4) and (3, -1).
Lena [83]

Answer:

Step-by-step explanation:

y2-y1/x2-x1

-1-(-4)/3-7

3/-4

y=mx+b

For the y coordinate it can be either -4,or -1

-4=3/-4x+b

b=13/4

8 0
3 years ago
Find the value for x <br> Can somebody help me? <br> Please
Katena32 [7]

Answer:

1-7 2-6 3-6 4-4

Step-by-step explanation:

To do this, you must notice that all of these are isosceles triangles (2 of the sides are the same.) You already have 1 value on each triangle, and the length of that side is the same length as the side with the unknown value, so those are the correct answers. If I made a mistake, please correct me. Everybody makes mistakes.

8 0
3 years ago
Other questions:
  • What is the volume of the right rectangle prism? ___Cm
    12·1 answer
  • Yossi used to have a square garage with 286 ft of floor space. He recently built an addition to it. The garage is still a​ squar
    14·2 answers
  • The rate on a cell phone is $0.22 per minute. If Izzy uses her phone for 2 hours, how much does she pay?
    7·1 answer
  • What is the equation of a line perpendicular to y=-3/2x+9
    9·1 answer
  • Find the value of x. Round to the nearest tenth.
    13·1 answer
  • What was the beginning balance in the incomplete register shown​
    11·1 answer
  • Hi there i need help in this
    7·1 answer
  • What’s this need help<br> asap !
    7·1 answer
  • Find the area of the image.<br> help pls
    6·2 answers
  • I'm only good at answering not solving:,)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!