Understanding Functions and Their Graphs

What is the equation of the identity function?

Which of the following describes the shape of the square function's graph?

• A straight line

• A V-shape

• A parabola

• A horizontal line

• The output is always positive

• The output is always negative

• The output remains constant

Which function creates a V-shaped graph?

• All real numbers

• All real numbers except 0

• Only positive numbers

• Only negative numbers

• It has a curve that starts at the origin and increases

• It has two branches

What is the key difference between the cube root function and the square root function?

• The cube root function is undefined for negative numbers

• The cube root function has two branches

• The cube root function is defined for all real numbers, while the square root function is not

• The cube root function has a V-shape

• All real numbers

• Only positive numbers

• Only negative numbers

• All real numbers except 0

Which of the following functions has a horizontal asymptote?

• The graph shifts upwards

• The graph shifts downwards

• The graph reflects over the x-axis

• The graph becomes a V-shape