Scatterplots/trendlines and MIX REVIEW 1st Period

Front

What is a scatterplot?

Back

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

Front

What does a positive relationship in a scatterplot indicate?

Back

A positive relationship in a scatterplot indicates that as one variable increases, the other variable also tends to increase.

Front

What is a trendline?

Back

A trendline is a line that is drawn on a scatterplot to represent the general direction of the data points.

Front

How do you determine the scale factor of an image?

Back

The scale factor is determined by comparing the dimensions of the original image to the dimensions of the scaled image.

Front

What does it mean for triangles to be similar?

Back

Triangles are similar if they have the same shape but may differ in size, meaning their corresponding angles are equal and their sides are in proportion.

Front

What is the definition of a function in mathematics?

Back

A function is a relation where each input (domain) is associated with exactly one output (range).

Front

How can you identify if a relation is a function from a set of ordered pairs?

Back

A relation is a function if no two ordered pairs have the same first element (input) with different second elements (outputs).

Front

What is the formula for finding the distance between two points in a scatterplot?

Back

The distance between two points (x1, y1) and (x2, y2) is calculated using the formula: d = √((x2 - x1)² + (y2 - y1)²).

Front

What does it mean if a scatterplot has no correlation?

Back

No correlation in a scatterplot means that there is no apparent relationship between the two variables; the data points do not show any trend.

Front

What is the purpose of using a scale factor in geometry?

Back

A scale factor is used to resize an object while maintaining its proportions, allowing for accurate representations of different sizes.