Pre-A REVIEW 8.1-8.5

Front

What is the initial value of a graph representing a quantity over time?

Back

The initial value is the starting amount of the quantity at the beginning of the time period, often represented as the y-intercept on a graph.

Front

What does it mean when a car is stopped on a distance-time graph?

Back

It means that the distance does not change over time, indicating that the speed is zero.

Front

How do you find the rate of change from a graph?

Back

The rate of change is found by calculating the slope of the line, which is the change in the y-value divided by the change in the x-value.

Front

Back

The number 20 represents the y-intercept, which is the value of y when x is 0.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept indicates the point where the line crosses the y-axis, showing the value of the dependent variable when the independent variable is zero.

Front

What does a negative slope indicate about a line on a graph?

Back

A negative slope indicates that as the x-value increases, the y-value decreases, showing an inverse relationship.

Front

How can you determine if a function is increasing or decreasing from its graph?

Back

A function is increasing if the graph moves upward as you move from left to right, and decreasing if it moves downward.

Front

What is the formula for calculating slope?

Back

Front

What does it mean if a graph has a slope of zero?

Back

A slope of zero means the line is horizontal, indicating that the y-value remains constant regardless of the x-value.

Front

What is the initial value of a table of values?

Back

The initial value of a table is the first value listed, often corresponding to the starting point of the independent variable.