Math 8 Snapshot #2 Practice 8.4C

Front

What is profit in a business context?

Back

Profit is the financial gain obtained when the revenue from sales exceeds the costs associated with producing and selling goods or services.

Front

How do you calculate profit per box if you sell boxes of cards?

Back

Profit per box = (Selling Price per Box) - (Cost per Box).

Front

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

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable. It indicates how steep the line is.

Front

What is the formula for calculating the slope (m) between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What is a y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x = 0.

Front

How can you identify the y-intercept from a linear equation in slope-intercept form (y = mx + b)?

Back

In the equation y = mx + b, 'b' represents the y-intercept.

Front

What does a negative slope indicate about a linear relationship?

Back

A negative slope indicates that as the independent variable increases, the dependent variable decreases.

Front

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

Back

A slope of zero indicates a horizontal line, meaning there is no change in the dependent variable as the independent variable changes.

Front

How do you find the y-intercept from a table of values?

Back

The y-intercept can be found by identifying the value of y when x = 0 in the table.

Front

What is the relationship between slope and steepness of a line?

Back

The greater the absolute value of the slope, the steeper the line. A slope of 1 or -1 indicates a 45-degree angle.