en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

radius y^2=4-x^2

Solution

radius

y^{2} = 4 - x^{2}

Solution

r = 2

Solution steps

y^{2} = 4 - x^{2}

Rewrite

y^{2} = 4 - x^{2}

in the form of the standard circle equation

(x - 0)^{2} + (y - 0)^{2} = 2^{2}

Therefore the circle properties are:

(a, b) = (0, 0), r = 2

And the radius is:

r = 2

Popular Examples

radius (x-17)^2+(y+5)^2=144 radius

(x - 17)^{2} + (y + 5)^{2} = 144

circumference 3x^2+3y^2+2x-4y-1=0 circumference

3 x^{2} + 3 y^{2} + 2 x - 4 y - 1 = 0

circumference x^2+y^2=25 circumference

x^{2} + y^{2} = 25

circumference x^2+y^2-8x-6y-11=0 circumference

x^{2} + y^{2} - 8 x - 6 y - 11 = 0

circumference x^2+y^2-18x-14y+124=0 circumference

x^{2} + y^{2} - 18 x - 14 y + 124 = 0

Frequently Asked Questions (FAQ)

What is the radius y^2=4-x^2 ?
The radius y^2=4-x^2 is r=2