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
Ierofanga [76]
3 years ago
15

Which equations show direct variation between x and y? Choose all answers that are correct. a 3x=7 b y=4.2/x c y/x=6 d y=0.5x +

9
Mathematics
1 answer:
anastassius [24]3 years ago
3 0

a).  No.  Variation in 'y' has no effect on 'x'.

b).  No.  Variation in 'x' has exactly the opposite effect on 'y'.

c).  Yes.  Variation in 'x' causes 'y' to vary 6 times as much in the same direction.

d).  No.  Doubling 'x' does not double 'y'.


You might be interested in
(-6,0), (-3,-1), (0,-2),(3,-3) what is the rate of change for the set of ordered pairs?
denis-greek [22]
For the x: -6, -3, 0, 3

The rate of change is 3, as it adds 3 each time.

-6 + 3 = -3
-3 + 3 = 0
0 + 3 = 3
etc.

For the y: 0, -1, -2, -3

The rate of change is -1, as it subtracts 1 each time.

0 - 1 = -1
-1 - 1 = -2
-2 - 1 = -3
etc.

Rate of change: 
x is +3
y is -1

hope this helps
5 0
4 years ago
Read 2 more answers
In a blind ESP test, a person correctly identifies whether a tossed coin comes
ivanzaharov [21]

Answer:

C

Step-by-step explanation:

the probability of the outcome being greater than 63 is x≥63

6 0
3 years ago
Evaluate.
Alik [6]

Hey mate! same question here answered by me correctly with proper explanation.Visit the link below for your answer

brainly.com/question/24947736?

6 0
3 years ago
Read 2 more answers
30. Write an equation in point-slope form for the line through the given point with the given slope. (-7,9); m=4/5
tamaranim1 [39]

Equation in point-slope form is y-9=4/5(x+7)

Option C is correct.

Step-by-step explanation:

We need to Write an equation in point-slope form for the line through the given point with the given slope. (-7,9); m=4/5

The formula used for point-slope form is:

y-y_1=m(x-x_1)

We are given slope m = 4/5

Point (-7,9) where x₁ = -7 and y₁ = 9

Putting values in the formula:

y-y_1=m(x-x_1)\\y-9=4/5(x-(-7))\\y-9=4/5(x+7)

So, equation in point-slope form is y-9=4/5(x+7)

Option C is correct.

Keywords: Equation of line using Slope  

Learn more about Equation of line using Slope at:

  • brainly.com/question/9369548
  • brainly.com/question/4932386
  • brainly.com/question/4819659
  • brainly.com/question/4097107

#learnwithBrainly

3 0
3 years ago
Sighting from a helicopter:A helicopter hovered at an altitude that is 1000 feet above a mountain peak of altitude 5210 feet A s
ICE Princess25 [194]
We can conclude that the the two peaks are 816.11 feet apart, and the altitude of the taller peak is 5475.17 feet.

Please check the detailed explanation in the images attached, and let me know what you think. :) 

5 0
3 years ago
Other questions:
  • Find the simple interest. Principal ​$200 rate 13​% time 33 months. The interest is ​$ nothing. ​(Round to the nearest​ cent.)
    15·1 answer
  • The circumference of a circle is 12pi feet. What is the diameter?
    12·1 answer
  • The system of equations y=2x-1 and y=-1/4x+3 is shown on the graph below. What is a reasonable estimate for the solution?
    14·1 answer
  • Which point is located on ray PQ?<br><br> A.point M<br> B.point N<br> C.point O<br> D.point R
    7·2 answers
  • Can someone please help <br> Smamsnsnjaka
    7·2 answers
  • What expression is equivalent to −24x+72?
    8·1 answer
  • The radius of a cylindrical water tank is 6.5 ft, and its height is 12 ft. What is the volume of the tank?​
    7·1 answer
  • Write in index form<br> 9x9x9
    12·1 answer
  • 40 points!! please do not plagiarize, I need this to be original :D
    7·1 answer
  • 7.28. Jason can type at a rate of 40 words per minute. How long will it take him to type a 2,000 word essay?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!