MP2 Final Review

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output (y) for each input (x).

Front

How can you determine if a relation is a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What does a scatterplot represent?

Back

A scatterplot is a graph that shows the relationship between two variables by displaying data points.

Front

What indicates a linear relationship in a scatterplot?

Back

A linear relationship is indicated by points that form a straight line or a pattern that can be approximated by a straight line.

Front

What is the purpose of making predictions based on a scatterplot?

Back

Predictions help estimate the value of one variable based on the known value of another variable.

Front

What does it mean if a scatterplot shows no correlation?

Back

No correlation means there is no discernible relationship between the two variables; the points are scattered randomly.

Front

What is the definition of a linear function?

Back

A linear function is a function that graphs to a straight line, typically in the form y = mx + b.

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of a line, calculated as the change in y divided by the change in x (rise/run).

Front

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

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.

Front

How do you identify the best fit line in a scatterplot?

Back

The best fit line minimizes the distance between the line and all data points, representing the trend of the data.