Unit 4 Review (Graph Functions)

Front

What is a sine function?

Back

Front

What does it mean for a relation to be a function?

Back

A relation is a function if every input (x-value) has exactly one output (y-value). If an input corresponds to more than one output, it is not a function.

Front

What is the x-axis and y-axis in a graph?

Back

The x-axis is the horizontal line on a graph, typically representing the independent variable. The y-axis is the vertical line, representing the dependent variable.

Front

What is a best-fit line?

Back

A best-fit line is a straight line that best represents the data on a scatter plot. It minimizes the distance between the line and all the data points.

Front

How do you interpret the slope of a best-fit line?

Back

The slope of a best-fit line indicates the rate of change of the dependent variable with respect to the independent variable. It shows how much y changes for a unit change in x.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the value of y when x is 0. It represents the starting point of the function on the y-axis.

Front

What is the formula for a linear function?

Back

Front

What is the amplitude of a sine function?

Back

The amplitude of a sine function is the maximum distance from the midline of the wave to its peak or trough. It is represented by the coefficient A in the sine function equation.

Front

What is the period of a sine function?

Back

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional plane.