U4 HW 6 - 7th

Front

What is the y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis. In this case, it is 60.

Front

What is the rate of change in a graph?

Back

The rate of change represents how much the dependent variable (y) changes for a unit change in the independent variable (x). For this graph, the rate of change is 40.

Front

If a customer's bill was $340, how long did the repair take?

Back

The repair took 7 hours.

Front

What does a flat rate fee mean in a service?

Back

A flat rate fee is a fixed charge for a service, regardless of the time or resources used. In this case, Mike charges a flat fee of $60 to diagnose the car.

Front

What does the coordinate (4,220) represent?

Back

The coordinate (4,220) represents that 4 hours of repairs will cost $220.

Front

How do you calculate the total cost of repairs?

Back

Total cost = flat fee + (hourly rate × number of hours). For example, if the flat fee is $60 and the hourly rate is $40 for 7 hours, the total cost is $60 + ($40 × 7) = $340.

Front

What is a linear relationship in a graph?

Back

A linear relationship is when the graph of the relationship forms a straight line, indicating a constant rate of change.

Front

What does it mean if a graph is increasing?

Back

If a graph is increasing, it means that as the independent variable (x) increases, the dependent variable (y) also increases.

Front

What is the significance of the slope in a graph?

Back

The slope indicates the rate of change of the dependent variable with respect to the independent variable. A steeper slope means a greater rate of change.

Front

What is the formula for slope?

Back

The formula for slope (m) is m = (change in y) / (change in x).