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
anastassius [24]
3 years ago
10

PLEASE HELP THANK YOU!!!

Mathematics
1 answer:
Paul [167]3 years ago
7 0

Answer:

Only C is a function

Step-by-step explanation:

To test whether a graph is a function you use the vertical line test.

If you can place a vertical line anywhere on the plane (in the domain of the "function" to be tested) and it intersects the curve at more than one point, the curve is not a function.

We see with A, wherever we put the vertical line it intersects twice.

With B, it intersects infinitely many times.

C is a function because wherever we put the vertical line, it only intersects once.

D is a function because it intersects twice providing we do not put it on the "tip" of the parabola.

The mathematical reasoning behind this is that a function must be well-defined, that is it must send every x-value to one specific y-value. There can be no confusion about where the function's input is going. If you look at graph B and I ask you what is f(3)? Is it 1? 2? 3? ... Who knows, it's not well-defined and so it's not a function. However if I ask you about C, whichever input value for x I give you, you can tell me to which y-value it gets mapped/sent to.

You might be interested in
Help please is this right if not help with answers
wlad13 [49]

Answer:

3/8 + 1/4 < 1

Check: Find common denominators, what you do to the denominator, you do to the numerator. Multiply 2 to both the top and bottom of the fraction:

(1/4)(2/2) = 2/8

3/8 + 2/8 < 1

5/8 < 1

5/8 < 8/8 (True).

Any fraction works in the second one, for regardless, you will get less than a whole number, so solve the third one first.

The 2 fractions needed will have to be greater than 1. 1/4 has already been used, so find two pairs of fractions that will, when added, be greater than 1.

(7/8 + 3/4)

Find common denominators, what you do to the denominator, you must do to the numerator:

(7/8)(2/2) + (3/4)(4/4) = (14/16) + (12/16) = 26/16

26/16 > 1 (True).

Finally, the last one will be 2/3.

2/3 - 1/8 < 1

Find common denominators, what you do to the denominator, you must do to the numerator:

(2/3)(8/8) - (1/8)(3/3) < 1

16/24 - 3/24 < 1

13/24 < 1 (True).

~

7 0
3 years ago
Given: x ∥ y and w is a transversal
dem82 [27]

Answer:

Transitive Property.

Explanation:

The transitive property states that if a = b and b = c, then we can deduce that a = c.

In the case of this problem, we know that ∠2≅∠3 and that ∠3≅∠6.  Using the transitive property, this means that ∠2≅∠6.

8 0
3 years ago
Read 2 more answers
You buy a new yoga ball. The ball has a diameter of 26 inches. What is the volume of the ball? Use 3.14 for pi. Round your answe
Mazyrski [523]

Answer:

9,198.11 thats the answer i just did this and got it correct

hope it helped

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
PLZ HURRY IT'S URGENT!
Furkat [3]

Answer:

D. 12 units

Step-by-step explanation:

The distance between two points is found by

d = sqrt( (x2-x1)^2 + (y2-y1)^2)

   sqrt( (4 -4)^2 + (-5-7)^2)

 sqrt((0^2 + (-12)^2)

 sqrt(0+144)

sqrt(144)

12

4 0
3 years ago
Solve the given initial-value problem. <br> (2y + 2t − 3) dt + (8y + 2t − 1) dy = 0, y(−1) = 2.
katrin2010 [14]

Answer:

holy ish  ive never seen anything like this in my life

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 1._Polynomials_Putting_Pieces_Together.pdf
    8·1 answer
  • The sum of two consecutive interegers is -131. Find the larger number.
    8·1 answer
  • On Friday afternoon, 560 people went to the local theater for the matinee. Youth tickets cost 5.75 and adult tickets cost 8.50.
    13·1 answer
  • Help me pleaseeeeeeeeeeee
    12·1 answer
  • using the digits 4,9,7,1 and 5,create a division sentence with two digit divisor and greatest possible quotient
    13·1 answer
  • A _____ angle has the same measure as its arc.​
    9·1 answer
  • What is the coefficient in the following expression?
    8·1 answer
  • Solve and graph <br> y&gt;3x<br> y&gt;-x-8
    14·1 answer
  • What is the measure of the missing angle? Please answer fast!
    7·2 answers
  • It costs five dollars to get into the local skating rink. The video games cost 75¢ each to play. If all you have to spend on ska
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!