Question
Function
Evaluate the derivative
Find the domain
Find the x-intercept/zero
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y′=704x3
Evaluate
y=4x3×44x
Simplify
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Evaluate
4x3×44x
Multiply the terms
176x3×x
Multiply the terms with the same base by adding their exponents
176x3+1
Add the numbers
176x4
y=176x4
Take the derivative of both sides
y′=dxd(176x4)
Use differentiation rule dxd(cf(x))=c×dxd(f(x))
y′=176×dxd(x4)
Use dxdxn=nxn−1 to find derivative
y′=176×4x3
Solution
y′=704x3
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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
y=4x344x
Simplify the expression
y=176x4
To test if the graph of y=176x4 is symmetry with respect to the origin,substitute -x for x and -y for y
−y=176(−x)4
Simplify
−y=176x4
Change the signs both sides
y=−176x4
Solution
Not symmetry with respect to the origin
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Solve the equation
Solve for x
Solve for y
x=2241331yx=−2241331y
Evaluate
y=4x3×44x
Simplify
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Evaluate
4x3×44x
Multiply the terms
176x3×x
Multiply the terms with the same base by adding their exponents
176x3+1
Add the numbers
176x4
y=176x4
Swap the sides of the equation
176x4=y
Divide both sides
176176x4=176y
Divide the numbers
x4=176y
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±4176y
Simplify the expression
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Evaluate
4176y
To take a root of a fraction,take the root of the numerator and denominator separately
41764y
Simplify the radical expression
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Evaluate
4176
Write the expression as a product where the root of one of the factors can be evaluated
416×11
Write the number in exponential form with the base of 2
424×11
The root of a product is equal to the product of the roots of each factor
424×411
Reduce the index of the radical and exponent with 4
2411
24114y
Multiply by the Conjugate
2411×41134y×4113
Calculate
2×114y×4113
Calculate
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Evaluate
4y×4113
The product of roots with the same index is equal to the root of the product
4y×113
Calculate the product
4113y
2×114113y
Calculate
224113y
Calculate
2241331y
x=±2241331y
Solution
x=2241331yx=−2241331y
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Rewrite the equation
r=0r=2322cos(θ)×cos(θ)3sin(θ)
Evaluate
y=4x3×44x
Simplify
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Evaluate
4x3×44x
Multiply the terms
176x3×x
Multiply the terms with the same base by adding their exponents
176x3+1
Add the numbers
176x4
y=176x4
Move the expression to the left side
y−176x4=0
To convert the equation to polar coordinates,substitute x for rcos(θ) and y for rsin(θ)
sin(θ)×r−176(cos(θ)×r)4=0
Factor the expression
−176cos4(θ)×r4+sin(θ)×r=0
Factor the expression
r(−176cos4(θ)×r3+sin(θ))=0
When the product of factors equals 0,at least one factor is 0
r=0−176cos4(θ)×r3+sin(θ)=0
Solution
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Factor the expression
−176cos4(θ)×r3+sin(θ)=0
Subtract the terms
−176cos4(θ)×r3+sin(θ)−sin(θ)=0−sin(θ)
Evaluate
−176cos4(θ)×r3=−sin(θ)
Divide the terms
r3=176cos4(θ)sin(θ)
Simplify the expression
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Evaluate
3176cos4(θ)sin(θ)
To take a root of a fraction,take the root of the numerator and denominator separately
3176cos4(θ)3sin(θ)
Simplify the radical expression
2322cos(θ)×cos(θ)3sin(θ)
r=2322cos(θ)×cos(θ)3sin(θ)
r=0r=2322cos(θ)×cos(θ)3sin(θ)
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