Question
Function
Find the x-intercept/zero
Find the y-intercept
Find the slope
x=−45
Evaluate
4y−16x=20
To find the x-intercept,set y=0
4×0−16x=20
Any expression multiplied by 0 equals 0
0−16x=20
Removing 0 doesn't change the value,so remove it from the expression
−16x=20
Change the signs on both sides of the equation
16x=−20
Divide both sides
1616x=16−20
Divide the numbers
x=16−20
Solution
More Steps

Evaluate
16−20
Cancel out the common factor 4
4−5
Use b−a=−ba=−ba to rewrite the fraction
−45
x=−45
Show Solution

Solve the equation
Solve for x
Solve for y
x=4−5+y
Evaluate
4y−16x=20
Move the expression to the right-hand side and change its sign
−16x=20−4y
Change the signs on both sides of the equation
16x=−20+4y
Divide both sides
1616x=16−20+4y
Divide the numbers
x=16−20+4y
Solution
More Steps

Evaluate
16−20+4y
Rewrite the expression
164(−5+y)
Cancel out the common factor 4
4−5+y
x=4−5+y
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
4y−16x=20
To test if the graph of 4y−16x=20 is symmetry with respect to the origin,substitute -x for x and -y for y
4(−y)−16(−x)=20
Evaluate
More Steps

Evaluate
4(−y)−16(−x)
Multiply the numbers
−4y−16(−x)
Multiply the numbers
−4y−(−16x)
Rewrite the expression
−4y+16x
−4y+16x=20
Solution
Not symmetry with respect to the origin
Show Solution

Rewrite the equation
Rewrite in polar form
Rewrite in standard form
Rewrite in slope-intercept form
r=sin(θ)−4cos(θ)5
Evaluate
4y−16x=20
To convert the equation to polar coordinates,substitute rcos(θ) for x and rsin(θ) for y
4sin(θ)×r−16cos(θ)×r=20
Factor the expression
(4sin(θ)−16cos(θ))r=20
Solution
r=sin(θ)−4cos(θ)5
Show Solution

Find the first derivative
Find the derivative with respect to x
Find the derivative with respect to y
dxdy=4
Calculate
4y−16x=20
Take the derivative of both sides
dxd(4y−16x)=dxd(20)
Calculate the derivative
More Steps

Evaluate
dxd(4y−16x)
Use differentiation rules
dxd(4y)+dxd(−16x)
Evaluate the derivative
More Steps

Evaluate
dxd(4y)
Use differentiation rules
dyd(4y)×dxdy
Evaluate the derivative
4dxdy
4dxdy+dxd(−16x)
Evaluate the derivative
More Steps

Evaluate
dxd(−16x)
Use differentiation rule dxd(cf(x))=c×dxd(f(x))
−16×dxd(x)
Use dxdxn=nxn−1 to find derivative
−16×1
Any expression multiplied by 1 remains the same
−16
4dxdy−16
4dxdy−16=dxd(20)
Calculate the derivative
4dxdy−16=0
Move the constant to the right-hand side and change its sign
4dxdy=0+16
Removing 0 doesn't change the value,so remove it from the expression
4dxdy=16
Divide both sides
44dxdy=416
Divide the numbers
dxdy=416
Solution
More Steps

Evaluate
416
Reduce the numbers
14
Calculate
4
dxdy=4
Show Solution

Find the second derivative
Find the second derivative with respect to x
Find the second derivative with respect to y
dx2d2y=0
Calculate
4y−16x=20
Take the derivative of both sides
dxd(4y−16x)=dxd(20)
Calculate the derivative
More Steps

Evaluate
dxd(4y−16x)
Use differentiation rules
dxd(4y)+dxd(−16x)
Evaluate the derivative
More Steps

Evaluate
dxd(4y)
Use differentiation rules
dyd(4y)×dxdy
Evaluate the derivative
4dxdy
4dxdy+dxd(−16x)
Evaluate the derivative
More Steps

Evaluate
dxd(−16x)
Use differentiation rule dxd(cf(x))=c×dxd(f(x))
−16×dxd(x)
Use dxdxn=nxn−1 to find derivative
−16×1
Any expression multiplied by 1 remains the same
−16
4dxdy−16
4dxdy−16=dxd(20)
Calculate the derivative
4dxdy−16=0
Move the constant to the right-hand side and change its sign
4dxdy=0+16
Removing 0 doesn't change the value,so remove it from the expression
4dxdy=16
Divide both sides
44dxdy=416
Divide the numbers
dxdy=416
Divide the numbers
More Steps

Evaluate
416
Reduce the numbers
14
Calculate
4
dxdy=4
Take the derivative of both sides
dxd(dxdy)=dxd(4)
Calculate the derivative
dx2d2y=dxd(4)
Solution
dx2d2y=0
Show Solution
