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
klasskru [66]
4 years ago
15

How do you graph a direct variation

Mathematics
2 answers:
just olya [345]4 years ago
7 0

When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation.

In simpler terms, that means if A is always twice as much as B, then they directly vary. If a gallon of milk costs $3, and I buy 1 gallon, the total cost is $3. If I buy 10 gallons, the price is $30. In this example the total cost of milk and the number of gallons purchased are subject to direct variation -- the ratio of the cost to the number of gallons is always 3.


To be more "geometrical" about it, if y varies directly as x, then the graph of all points that describe this relationship is a line going through the origin (0, 0) whose slope is called the constant of variation. That's because each of the variables is a constant multiple of the other, like in the graph shown below:

Artyom0805 [142]4 years ago
3 0
I confirm with the answer that k is the slope of the graph<span>. If the variables x and y vary directly when x = 3 and y = 15, then: a. Write an equation that relates x and y.</span>
You might be interested in
A true-false test contains 7 questions. in how many different ways can the 7-question test be answered
alexgriva [62]
The answer would be 14.
This is because 7 x 2 = 14 and there are 2 options when it's a true or false question.
5 0
3 years ago
Which of the following can cause market failure?
nalin [4]

Answer: C

Step-by-step explanation: not enough information

5 0
3 years ago
Factoring trinomials 3x^3-24x^2+45x​
yarga [219]

Answer:

Option B: 3x(x - 3)(x - 5)

Step-by-step explanation:

The given polynomial is: 3x³ - 24x² + 45x

To factorize it: 3x³ - 24x² + 45x

Since, 3x is common through out we can take it out.

⇒               3x(x² - 8x + 15)

Now we have to factorize (x² - 8x + 15)

The roots of this quadratic equation is: 5, 3.

Therefore, x² - 8x + 15 = (x - 3)(x - 5)

Combining them, the factors of the polynomial would be:

(B)                                     3x(x - 3)(x - 5)

5 0
3 years ago
A local grocery store tested spinach samples for E coli bacteria using two different tests. The first test has a 94% probability
GuDViN [60]

Answer:

83.66%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Mikhail recorded the heights of all the male students in his math class. The results, in inches, are:
romanna [79]

Answer:

D. step and leaf plot

Step-by-step explanation:

im always right ahaha

6 0
3 years ago
Other questions:
  • (09.04 mc) a circle has its center at (−1, 2) and a radius of 3 units. what is the equation of the circle? (x − 1)2 + (y + 2)2 =
    7·2 answers
  • Can someone help me please
    13·1 answer
  • Tate started at -12 on a number line and drew a line to -25. How long is the line he drew?
    12·1 answer
  • A bank is offering home loans at an interest rate of 5 1/2%. Write the percent as a fraction in simplest form
    11·1 answer
  • 6000 whole number multiplied by a power of ten
    8·2 answers
  • What is the range of 1/2 1/8 1/2 5/8 1/4 1/4 1/2 3/4 1/8 5/8 1/4 1/2
    8·1 answer
  • The measure of angle BFG is
    7·1 answer
  • HELP URGENT I WILL GIVE 5 STARS!!!!! 3 PARTS
    5·1 answer
  • For a given input value rrr, the function hhh outputs a value qqq to satisfy the following equation. q-10=6(r+1)q−10=6(r+1)q, mi
    8·2 answers
  • Help pleaseee what are the answers to these questions??
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!