To understand the function better, let's convert it from polar coordinates to cartesian coordinates. The relation between those coordinates are
Our function is
If we multiply both sides by r, we have
The square of the radius is equal to the sum of the squares of the cartesian coordinates
Using this identity, we can rewrite our function as
Completing the square, we can rewrite our function as
This is a equation of a circle.
To find the y-intercept, we can convert this to slope-intercept form, or replace the value of x with 0 and solve for y.
We'll do both first.
-x + 5y = 45
5y = 45
Divide both sides by 5.
y = 9
Now let's convert it to slope-intercept.
-x + 5y = 45
Add x to both sides.
5y = 45 + x
Divide both sides by 5.
y = 1/5x + 9
y = 9
<h3><u>The y-intercept of our line is 9.</u></h3>
Answer:
that is literally so easy just add some type of fraction
Step-by-step explanation:
-.27 1/10
-.27 2/10
-.27 3/10
etc.
Answer:
38π cm
Step-by-step explanation:
The area of a circle of radius r is A = 2πr.
If the radius is 19 cm, then the area is A = 2π(19 cm), or 38π cm.
Answer:
Yes
Step-by-step explanation:
1x6=6
2x6=12
3x6=18
4x6=24
