8th Math Semester Review Part 3 24-25

Front

What is a scatterplot?

Back

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

Front

How do you determine the average from a scatterplot?

Back

To determine the average from a scatterplot, look for the trend of the data points and estimate the value of the dependent variable at a given independent variable.

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input. It can be represented as an equation, a graph, or a table.

Front

What does it mean for a graph to represent a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

Front

How do you find the total cost of purchasing items at a constant rate?

Back

To find the total cost, use the function y = mx, where m is the cost per item and x is the number of items purchased.

Front

What is the formula to calculate the average number of hours spent at work based on recreational hours?

Back

The formula is based on the trend observed in the scatterplot, which can be derived from the data points.

Front

If a team practices for 6 hours, how do you determine the number of debates they should win?

Back

Use the ratio of practice hours to debates won to find the expected number of wins.

Front

What is the significance of the slope in a linear function?

Back

The slope indicates the rate of change of the dependent variable with respect to the independent variable.

Front

What does it mean if a line on a graph is steep?

Back

A steep line indicates a large change in the dependent variable for a small change in the independent variable.

Front

How can you tell if a relationship is linear?

Back

A relationship is linear if the data points form a straight line when graphed.