What is a key characteristic that distinguishes a mathematical function from other mathematical relations?

• Each input has exactly one output

• Functions can be represented by graphs

• Functions are used in calculus

• Functions describe relationships between variables

Which equation represents a linear function?

• y = mx + b

• y = ax^2 + bx + c

• y = a^x

• y = log(x)

What type of graph does a quadratic function produce?

• Parabolic

• Linear

• Exponential

• Logarithmic

Which type of function is used to model growth and decay processes?

• Exponential functions

• Linear functions

• Quadratic functions

• Trigonometric functions

What is the equation for a quadratic function?

• y = ax^2 + bx + c

• y = mx + b

• y = a^x

• y = sin(x)