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
WINSTONCH [101]
2 years ago
14

Which is the directrix of a parabola with equation X^2=8y

Mathematics
2 answers:
Alexxandr [17]2 years ago
8 0

Answer:

y=-2

Step-by-step explanation:

Which is the directrix of a parabola with equation X^2=8y

The directrix is given by y=k−p

(h,k+p).focus of a parabola is given by (h,k+p).

(x−h)^2=4p(y−k), is known as the equation of a parabola

X^2=8y

comparing we have

(x−h)^2=x^2

x=x-h

h=0

4p(y−k)=8y

k=0

4py=8y

p=2

recall the directrix is given by  y=k−p

y=0-2

y=-2

Parabola is a curve such that any point is at equidistant from the focus

nydimaria [60]2 years ago
6 0
<span><span><span>√<span>8y</span></span><span> or </span></span>x</span>=<span>−<span>√<span>8<span>y i believe gud luck luv</span></span></span></span>
You might be interested in
Find "both" answers
Eva8 [605]

Answer:

Please check the explanation!

Step-by-step explanation:

Finding the slope:

Taking two points to find the slope of the linear function

  • (2, 10)
  • (3, 13)

Slope = m = y₂-y₁ / x₂-x₁

                 = (13-10) / (3-2)

                 = 3 / 1

                 = 3

Thus, the slope = m = 3

Finding the common difference between consecutive terms of the arithmetic sequence

Given the sequence

10, 13, 16, 19

d = 13-10=3,  d=16-13=3,  d=19-16=3

Thus, the common difference between consecutive terms of the arithmetic sequence is:

d = 3

Finding the difference between the terms a₂ and a₄

a₂ = 13

a₄ = 19

The common difference between a₂ and a₄ = 19 - 13

                                                                         = 6

Thus, the common difference between a₂ and a₄ = 6

Find the common difference of the Arithmetic Sequence

Given the sequence

10, 13, 16, 19

d = 13-10=3,  d=16-13=3,  d=19-16=3

As the common difference between all the adjacent terms is the same. Thus, the common difference of the Arithmetic will be: d = 3

<u>RESULT </u>

From the above calculations, we conclude that:

  • Slope =  3
  • The common difference between consecutive terms of the arithmetic sequence = 3
  • The difference between the terms a₂ and a₄ = 6
  • The common difference of the Arithmetic Sequence = 6

Thus,

The answer to the ''different'' question is: 6

The answer to the ''same'' three questions: 3

8 0
2 years ago
\sf 45-2x=75-3x<br><br><br><br> Free
irakobra [83]

Answer:

<h3>aww thanks </h3>

the process by which plants and animals.make their own food is called photo synthesis.

6 0
2 years ago
Read 2 more answers
Which matrix represents the solution to the system of equations below?
boyakko [2]

Answer:

The one that's include a rows 2 1 1 2

5 0
3 years ago
_____________________________
ValentinkaMS [17]

Step-by-step explanation:

hope it is helpful to you

7 0
2 years ago
How do I solve 20? Thanks
Gnom [1K]
20)

using
<span>a^3 + b^3 = (a+b)(a^2 − ab + b^2)
</span>so
w^3 + 125z^3
= w^3 +(5z)^3
= (w + 5z)(w^2 - 5wz + 25z^2)

hope it helps
6 0
3 years ago
Other questions:
  • What is the surface area of the rectangular prism? 528 cm 2 440 cm 2 404 cm 2 484 cm
    15·2 answers
  • What is the value of the expression 2.6 x 10 to the 9th power over 1.3 x 10 to the 2nd power?
    9·1 answer
  • A family drove 1/5 of the total distance to the coast on the first day. They drove another 1/4 of the distance on the second day
    5·1 answer
  • (01.05 MC)The total charge on 7 particles is -42 units. All the particles have the same charge.
    12·1 answer
  • You draw a simple random sample of 100 taxi drivers living in New York City. You wish to test whether mean time spent driving fo
    5·1 answer
  • Please answer these Expressions
    5·1 answer
  • 3. Find the values of the constants in each of the following:
    8·1 answer
  • jacob has finished school and moved into his own apartment. he is creating a budget to track his income and expenses. what must
    13·1 answer
  • A radioactive material has a half life of 10 years. What is the fraction of the initial isotope is left after 60 years
    6·1 answer
  • Barrett works at an ice cream shop. the function f(x) represents the amount of money in dollars barrett earns per gallon of ice
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!