If you plot this point and the directrix on a coordinate plane, you can see that the directrix is 1/4 of a unit below the vertex. Since, by nature, a parabola opens in the direction opposite the directrix and "hugs" the focus, this is a positive x-squared parabola (meaning it opens upwards). The formula for this type of a parabola is, in vertex form,

$4p(y-k)=(x-h)^2$

where p is distance (in units) between the vertex and the directrix and h and k are the coordinates of the vertex. For us, p = .25, h = 7, and k = -6. Filling in our formula:

$4(.25)(y+6)=(x-7)^2$

Simplify the left side to

$1(y+6)=(x-7)^2$ which simplifies, in its entirety, to

$(x-7)^2-6=y$

3 0

2 years ago

Help will give Brainly points

Elodia [21]

Answer:

$\frac{24}{25}$

Step-by-step explanation:

$\cos(\theta)=\frac{\textrm{adjacent}}{\textrm{hypotenuse}}$

4 0

2 years ago

The mariana trench in the pacific ocean is about 36,201 feet deep. the puerto rico trench n the atlantic ocean is about 27,493 f

sleet_krkn [62]

Do you know how to draw a bar graph?
Or model.
It's not something I can draw on this. But for purposes of helping you find how many feet deeper the Marina to the Puerto Rico trench

36,201 minus 27,493

8 0

3 years ago

Read 2 more answers

Plssss help and please don't scam

BARSIC [14]

I believe the answer is 2783 for 1 a - either

5 0

2 years ago