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
7nadin3 [17]
2 years ago
12

Which is the directrix of a parabola with equation x2 = 8y?

Mathematics
1 answer:
olga_2 [115]2 years ago
4 0

Answer:

Y=-2

Step-by-step explanation:

You would use the vertex form to find the directrix

You might be interested in
PartA)What are the transformations are needed in in order to obtain the graph of G(x) from the graph of f(x) Select all that app
iVinArrow [24]

Part A)

Recall that:

1) The function represented by the graph of the function f(x) translated vertically n units up and horizontally m units left is:

f(x+m)+n\text{.}

2) The function represented by the graph of the function f(x) reflected over the x-axis is:

-f(x)\text{.}

Now, notice that g(x) is the function f(x) reflected over the x-axis and then translated vertically 6 units up and horizontally 4 units left.

Answer Part A:

Options B, C, and D.

Part B) To graph g(x) we will reflect the graph of f(x) over the x-axis and then we will translate it vertically 6 units up and horizontally 4 units left.

We know that the graph of f(x)=|x| is:

The above graph reflected over the x-axis is:

Finally, the above graph translated vertically 6 units up and horizontally 4 units left is:

Answer part B:

7 0
1 year ago
Rewrite the equation 5x - 2y = 4 so it is in the form y = mx + b
muminat
Y=(5x-4)/2 first move -2y to the other side to obtain a positive value and make y the subject

8 0
3 years ago
Read 2 more answers
Timmy went running and used 500 calories. What would Timmy have to do to get those
Ilya [14]

Answer:

Eat a food with 500 calories

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which function describes the arithmetic sequence shown?
Lynna [10]

f(x)= -2x-3

Step-by-step explanation:

Step 1:

Let the sequence given here is -5, -7, -9, -11, -13 ......

Here the first term (a₁) of sequence is -5

And the common difference between the numbers in the sequence is

d= (-7-(-5)) = -7+5 = -2

Let the number of terms be x

Step 2;

To find the sequence function basic arithmetic sequence formula is

aₙ = a₁ + d( x-1)

Applying the values we get

f(X) = -5 + ((-2)(X-1))

on simplification

f(X) = -5 + (-2X+2)

f(X)= -5+2-2X

f(X)= -3-2X

8 0
3 years ago
Whats the answer to log <img src="https://tex.z-dn.net/?f=log_%7Bx%2B2%7D%20%289x%29%20%3D2" id="TexFormula1" title="log_{x+2} (
lyudmila [28]

Answer:

x= 1, 4

Step-by-step explanation:

log_{x+2} (9x) =2\\\\9x = (x+2)^2 \\\\(x+2)^2 - 9x = 0\\\\x^2 +4x + 4-9x = 0\\\\x^2 - 5x +4= 0\\\\x^2 - 4x-x+4=0\\\\x(x-4)-1(x-4)=0\\\\(x-4)(x-1)=0\\\\x-4 =0\: or\: x - 1=0\\\\x = 4\: or\: x = 1\\\\x = 1,\: 4

4 0
2 years ago
Other questions:
  • Critical Thinking: Buses on your route run every 9 minutes from 6:00 AM to 10:00 AM. You get to the bus stop at 7:16 AM,…
    5·1 answer
  • Evaluate g(n-5) if g(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2%20-%206%7D%7B2x%7D" id="TexFormula1" title="\frac{x^
    14·1 answer
  • the following data values represent a sample. what is the variance of the sample? x=9. use the information in the table to help
    6·1 answer
  • Which of the following is an advantage of a low center of gravity?
    9·1 answer
  • Please help me with this
    5·2 answers
  • Three more than 4 times a number
    12·1 answer
  • Which function represents exponential decay?
    9·1 answer
  • Answer the equation: -10x-x
    5·2 answers
  • Given the figure below, find the values of x and z
    7·1 answer
  • It is 6 kilometers from Linda's house to the nearest mailbox. How far is it in meters?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!