Answer:
C
Step-by-step explanation:
First you find which line is which.
The one with 5x in it is the steepest one, and we have to be above it due to the >.
The one with 2x in it is the least steep, and we have to be below it due to the <.
Graph C satisfies both these restrictions.
The polar equation of an ellipse is .
The vertices of ellipse are (−1,0) and (3,0).
The polar equation of an ellipse can be represented as
where e is the eccentricity.
Eccentricity, e =
c is the distance from the center to the focus and a is the distance from the center to the vertex
⇒
⇒ c = 2
⇒
⇒ a = 1
Then, e =
⇒ e = 2
Now, the polar equation of an ellipse becomes as,
⇒ ------- (1)
Now plug in a vertex point such as (-1,0) and solve for p,
⇒
⇒ [∵ cos 0 = 1]
⇒
⇒
⇒
Thus the polar equation of an ellipse (1) becomes as,
⇒
⇒
Hence we can conclude that the polar equation of an ellipse is .
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<span>First set: 7, 24, 25.
Square 7, 24 and 25.
Add together the squares of 7 and 24.
Compare this sum to the square of 25. </span>
Answer:
20
Step-by-step explanation:
y+4=−12(x−2)
Step 1: Add -4 to both sides.
y+4+−4=−12x+24+−4
y=−12x+20
Answer:
It is a function.
Step-by-step explanation:
Functions are relations in which one domain value is assigned to exactly one range value. The x-value must not repeat in the relation set for it to be a function.
{(2,3), (4,3), (6,3), (5,9), (3,9)}
There are no repeating x-values given.
The relation should be a function.
Hope this helps.