Question
Solve the equation
Solve for x
Solve for y
x=41
Evaluate
2y−8xy=0
Rewrite the expression
2y−8yx=0
Move the expression to the right-hand side and change its sign
−8yx=0−2y
Removing 0 doesn't change the value,so remove it from the expression
−8yx=−2y
Divide both sides
−8y−8yx=−8y−2y
Divide the numbers
x=−8y−2y
Solution
More Steps

Evaluate
−8y−2y
Cancel out the common factor −2
4yy
Reduce the fraction
41
x=41
Show Solution

Testing for symmetry
Testing for symmetry about the origin
Testing for symmetry about the x-axis
Testing for symmetry about the y-axis
Not symmetry with respect to the origin
Evaluate
2y−8xy=0
To test if the graph of 2y−8xy=0 is symmetry with respect to the origin,substitute -x for x and -y for y
2(−y)−8(−x)(−y)=0
Evaluate
More Steps

Evaluate
2(−y)−8(−x)(−y)
Multiply the numbers
−2y−8(−x)(−y)
Multiply the terms
−2y−8xy
−2y−8xy=0
Solution
Not symmetry with respect to the origin
Show Solution

Rewrite the equation
r=0r=4sec(θ)
Evaluate
2y−8xy=0
To convert the equation to polar coordinates,substitute x for rcos(θ) and y for rsin(θ)
2sin(θ)×r−8cos(θ)×rsin(θ)×r=0
Factor the expression
−8cos(θ)sin(θ)×r2+2sin(θ)×r=0
Simplify the expression
−4sin(2θ)×r2+2sin(θ)×r=0
Factor the expression
r(−4sin(2θ)×r+2sin(θ))=0
When the product of factors equals 0,at least one factor is 0
r=0−4sin(2θ)×r+2sin(θ)=0
Solution
More Steps

Factor the expression
−4sin(2θ)×r+2sin(θ)=0
Subtract the terms
−4sin(2θ)×r+2sin(θ)−2sin(θ)=0−2sin(θ)
Evaluate
−4sin(2θ)×r=−2sin(θ)
Divide the terms
r=2sin(2θ)sin(θ)
Simplify the expression
r=4sec(θ)
r=0r=4sec(θ)
Show Solution

Find the first derivative
Find the derivative with respect to x
Find the derivative with respect to y
dxdy=1−4x4y
Calculate
2y−8xy=0
Take the derivative of both sides
dxd(2y−8xy)=dxd(0)
Calculate the derivative
More Steps

Evaluate
dxd(2y−8xy)
Use differentiation rules
dxd(2y)+dxd(−8xy)
Evaluate the derivative
More Steps

Evaluate
dxd(2y)
Use differentiation rules
dyd(2y)×dxdy
Evaluate the derivative
2dxdy
2dxdy+dxd(−8xy)
Evaluate the derivative
More Steps

Evaluate
dxd(−8xy)
Use differentiation rules
dxd(−8x)×y−8x×dxd(y)
Evaluate the derivative
−8y−8x×dxd(y)
Evaluate the derivative
−8y−8xdxdy
2dxdy−8y−8xdxdy
2dxdy−8y−8xdxdy=dxd(0)
Calculate the derivative
2dxdy−8y−8xdxdy=0
Collect like terms by calculating the sum or difference of their coefficients
(2−8x)dxdy−8y=0
Move the constant to the right side
(2−8x)dxdy=0+8y
Removing 0 doesn't change the value,so remove it from the expression
(2−8x)dxdy=8y
Divide both sides
2−8x(2−8x)dxdy=2−8x8y
Divide the numbers
dxdy=2−8x8y
Solution
More Steps

Evaluate
2−8x8y
Rewrite the expression
2(1−4x)8y
Cancel out the common factor 2
1−4x4y
dxdy=1−4x4y
Show Solution

Find the second derivative
Find the second derivative with respect to x
Find the second derivative with respect to y
dx2d2y=1−8x+16x232y
Calculate
2y−8xy=0
Take the derivative of both sides
dxd(2y−8xy)=dxd(0)
Calculate the derivative
More Steps

Evaluate
dxd(2y−8xy)
Use differentiation rules
dxd(2y)+dxd(−8xy)
Evaluate the derivative
More Steps

Evaluate
dxd(2y)
Use differentiation rules
dyd(2y)×dxdy
Evaluate the derivative
2dxdy
2dxdy+dxd(−8xy)
Evaluate the derivative
More Steps

Evaluate
dxd(−8xy)
Use differentiation rules
dxd(−8x)×y−8x×dxd(y)
Evaluate the derivative
−8y−8x×dxd(y)
Evaluate the derivative
−8y−8xdxdy
2dxdy−8y−8xdxdy
2dxdy−8y−8xdxdy=dxd(0)
Calculate the derivative
2dxdy−8y−8xdxdy=0
Collect like terms by calculating the sum or difference of their coefficients
(2−8x)dxdy−8y=0
Move the constant to the right side
(2−8x)dxdy=0+8y
Removing 0 doesn't change the value,so remove it from the expression
(2−8x)dxdy=8y
Divide both sides
2−8x(2−8x)dxdy=2−8x8y
Divide the numbers
dxdy=2−8x8y
Divide the numbers
More Steps

Evaluate
2−8x8y
Rewrite the expression
2(1−4x)8y
Cancel out the common factor 2
1−4x4y
dxdy=1−4x4y
Take the derivative of both sides
dxd(dxdy)=dxd(1−4x4y)
Calculate the derivative
dx2d2y=dxd(1−4x4y)
Use differentiation rules
dx2d2y=(1−4x)2dxd(4y)×(1−4x)−4y×dxd(1−4x)
Calculate the derivative
More Steps

Evaluate
dxd(4y)
Simplify
4×dxd(y)
Calculate
4dxdy
dx2d2y=(1−4x)24dxdy×(1−4x)−4y×dxd(1−4x)
Calculate the derivative
More Steps

Evaluate
dxd(1−4x)
Use differentiation rules
dxd(1)+dxd(−4x)
Use dxd(c)=0 to find derivative
0+dxd(−4x)
Evaluate the derivative
0−4
Evaluate
−4
dx2d2y=(1−4x)24dxdy×(1−4x)−4y(−4)
Calculate
More Steps

Evaluate
4dxdy×(1−4x)
Apply the distributive property
4dxdy×1−4dxdy×4x
Any expression multiplied by 1 remains the same
4dxdy−4dxdy×4x
Multiply the terms
4dxdy−16xdxdy
dx2d2y=(1−4x)24dxdy−16xdxdy−4y(−4)
Calculate
More Steps

Evaluate
4y(−4)
Rewrite the expression
−4y×4
Multiply the terms
−16y
dx2d2y=(1−4x)24dxdy−16xdxdy−(−16y)
Calculate
dx2d2y=(1−4x)24dxdy−16xdxdy+16y
Use equation dxdy=1−4x4y to substitute
dx2d2y=(1−4x)24×1−4x4y−16x×1−4x4y+16y
Solution
More Steps

Calculate
(1−4x)24×1−4x4y−16x×1−4x4y+16y
Multiply the terms
More Steps

Multiply the terms
4×1−4x4y
Multiply the terms
1−4x4×4y
Multiply the terms
1−4x16y
(1−4x)21−4x16y−16x×1−4x4y+16y
Multiply the terms
(1−4x)21−4x16y−1−4x64xy+16y
Calculate the sum or difference
More Steps

Evaluate
1−4x16y−1−4x64xy+16y
Reduce fractions to a common denominator
1−4x16y−1−4x64xy+1−4x16y(1−4x)
Write all numerators above the common denominator
1−4x16y−64xy+16y(1−4x)
Multiply the terms
1−4x16y−64xy+16y−64xy
Calculate the sum or difference
1−4x32y−128xy
Factor the expression
1−4x32y(−4x+1)
Rewrite the expression
−4x+132y(−4x+1)
Reduce the fraction
32y
(1−4x)232y
Expand the expression
More Steps

Evaluate
(1−4x)2
Use (a−b)2=a2−2ab+b2 to expand the expression
12−2×1×4x+(4x)2
Calculate
1−8x+16x2
1−8x+16x232y
dx2d2y=1−8x+16x232y
Show Solution
