Gr8 Math STAAR Review

Front

What is a positive slope?

Back

A positive slope indicates that as the x-value increases, the y-value also increases, resulting in an upward trend on a graph.

Front

What is a negative slope?

Back

A negative slope indicates that as the x-value increases, the y-value decreases, resulting in a downward trend on a graph.

Front

What does a line of best fit represent in a scatter plot?

Back

A line of best fit represents the trend of the data points in a scatter plot, showing the general direction in which the data points are moving.

Front

How can you identify a positive correlation in a scatter plot?

Back

A positive correlation is identified when the data points tend to rise together, meaning as one variable increases, the other variable also increases.

Front

How can you identify a negative correlation in a scatter plot?

Back

A negative correlation is identified when the data points tend to fall together, meaning as one variable increases, the other variable decreases.

Front

What does 'no correlation' mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; the data points do not show any consistent pattern.

Front

What is a function in mathematics?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What is an example of a function?

Back

An example of a function is the equation y = 2x + 3, where for every x-value, there is one corresponding y-value.

Front

What is a non-function?

Back

A non-function is a relation where at least one input (x-value) has multiple outputs (y-values).

Front

What is the slope of a line?

Back

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