What do parametric equations in 3D space typically represent?

• A point

• A plane

• A circle

• A line

How does a vector-valued function represent a path in 3D space?

• By defining a single point

• By using a scalar value

• By using only the x and y components

• By defining vectors from the origin to points on the path

What shape does the vector-valued function r = (4 cos(t), 4 sin(t), 3) define in 3D space?

• A line

• A helix

• A circle in the plane z = 3

• An ellipse

In the function r = (0, 3 cos(t), 5 sin(t)), what does the constant zero in the x component indicate?

• The path is a line

• The path is a spiral

• The path is a circle

• The path lies entirely in the plane x = 0

What is the effect of different coefficients in the y and z components of a vector-valued function?

• The path becomes an ellipse

• The path becomes a circle

• The path remains unchanged

• The path becomes a line

What happens to the path when the x component of a vector-valued function is changed to t?

• It stays in the same plane

• It forms a helix

• It becomes a line

• It remains a circle

How does changing the y component to negative t affect the path of a vector-valued function?

• It keeps the path in the same plane

• It results in a straight line

• It forms a helix coiling in the negative y direction

• It creates a circle

What does a vector-valued function with equal coefficients in the x and z components create?

• An elliptical path

• A spiral

• A circular helix

• A line

What does the vector-valued function r = (2 cos(t), 2 sin(t), 6e^(-t/4)) illustrate?

• A line

• A circle

• A spiral with exponential decay

• A helix

What does the exponential term in the z component of a vector-valued function indicate?

• Linear growth

• Constant value

• Circular motion

• Exponential decay