2024 #1 Readiness 8.8C, 8.4B, 8.4C, 8.5I, 8.5G, 8.5D 8.7A 8.12D

Front

What does 'no association' mean in the context of a graph?

Back

'No association' indicates that there is no discernible relationship between the variables represented in the graph.

Front

How can you use a trend line to make predictions in a scatter plot?

Back

A trend line can be used to estimate the value of one variable based on the value of another by extending the line to the desired value.

Front

What is a function in mathematical terms?

Back

A function is a relation that assigns exactly one output for each input.

Front

How do you determine if y is a function of x from an equation?

Back

To determine if y is a function of x, check if for every x-value there is only one corresponding y-value.

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of y with respect to x, indicating how much y changes for a unit change in x.

Front

What is the y-intercept of a linear function?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, y).

Front

How do you calculate the slope from two points on a line?

Back

The slope (m) can be calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What is the significance of the slope being positive or negative?

Back

A positive slope indicates that as x increases, y also increases, while a negative slope indicates that as x increases, y decreases.

Front

How can you interpret the slope of 1/4 in a real-world context?

Back

A slope of 1/4 means that for every 4 units increase in x, y increases by 1 unit.

Front

What does it mean for a function to be linear?

Back

A linear function is one that graphs to a straight line, characterized by a constant rate of change.