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
garri49 [273]
3 years ago
9

Which of the following functions is a direct variation?

Mathematics
1 answer:
ololo11 [35]3 years ago
5 0

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

You might be interested in
Select True or False for each statement.
SSSSS [86.1K]

\left( \dfrac 1 {64} \right)^{- 5/6} =64^{5/6} = (\sqrt[6]{64})^5 = 2^5 =32

TRUE

\sqrt[5]{36^4}=36^{4/5}

which surely isn't 36.  FALSE

\sqrt{12} - \dfrac 2 5 \sqrt{75} = 2 \sqrt{3} -\dfrac 2 5 (5) \sqrt{3} = 0

FALSE

For the fourth one we have a

\sqrt{98b} + \sqrt{2b}

which isnt

10\sqrt{b}

so this is FALSE.

\dfrac{1}{(\sqrt 5 - \sqrt 6)^2}

= \dfrac{1}{(\sqrt 5 - \sqrt 6)^2} \cdot \dfrac{(\sqrt 5 + \sqrt 6)^2}{(\sqrt 5 + \sqrt 6)^2}

= \dfrac{(\sqrt 5 + \sqrt 6)^2}{ ( (\sqrt 5 - \sqrt 6)(\sqrt 5 + \sqrt 6))^2}

= \dfrac{(\sqrt 5 + \sqrt 6)^2}{( 5-6)^2}

=(\sqrt 5 + \sqrt 6)^2

No fractions in that one so FALSE.

3 0
2 years ago
Someone help me leran this meth problem
Sergio [31]

Answer:


Step-by-step explanation:


3 0
2 years ago
Read 2 more answers
The minimum number of triangles needed to construct the polygon Sophia made is 3. Which could show Sophia’s polygon?
schepotkina [342]

I think the answer is 6 or 9  Because the minimum is 3 I hope this helps.

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP! WHOEVER GETS MY QUESTION RIGHT GETS BRAINLIEST! 70 POINTS!!!! Koji is installing a rectangular window in an of
svp [43]

Since we have the length and width of the window, we can multiply the two values.

Convert both fractions to improper fractions

(26/3)*(23/4)

=598/12 ft squared

= This simplifies to 49 5/6 ft. squared

7 0
3 years ago
Read 2 more answers
2 × 6 × 3 × 0 × 4 > 12 × 1 × 1 true or false
8_murik_8 [283]

Answer:

The first one is 0 and the second one is 12 so that is false

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Other questions:
  • For 7 days keep track of the number of pieces of mail you receive at your home.
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=1%2C%5Cfrac%7B1%7D%7B8%7D%2C%5Cfrac%7B1%7D%7B27%7D%2C%5Cfrac%7B1%7D%7B64%7D%2C...%2C%5Cfrac%7B
    10·1 answer
  • Consider the graph of the linear function h(x) = –x + 5. Which could you change to move the graph down 3 units?
    10·2 answers
  • Help!!!!!!!! I need this asap!!!!!!!! please and thank you
    9·2 answers
  • Subject On-Time Assignment Submission On-Time Arrival to Class Physics 89.7% 82.3% Math 88.2% 88.7% Chemistry 89.4% 83.1% Biolog
    12·1 answer
  • Answer at least 5 of these questions.
    12·2 answers
  • Which is larger 3/10 or 0.25
    10·2 answers
  • Y=2x-5 x+y=7 solve by elimination
    5·2 answers
  • HELP ME PLEASE !!!!!!
    12·1 answer
  • B. Write an expression for the price with tax of the dress shirt.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!