7.7A Skill Review

Front

What is the equation to find the total cost of a taxi trip if the initial charge is $3.50 and the charge per mile is $3.65?

Back

y = 3.65x + 3.50, where y is the total cost and x is the number of miles.

Front

What does an additive relationship in a graph indicate?

Back

An additive relationship indicates that as one quantity increases, the other quantity increases by a constant amount.

Front

Which equation represents a linear relationship between x and y in a table?

Back

y = 4x + 6.

Front

How do you determine the number of bags of cookies if you know the total number of cookies?

Back

Find the rule from the table, then divide the total cookies by the number of cookies per bag.

Front

What are independent values in a data set?

Back

Independent values are the input values that can be controlled or changed, such as ticket quantities.

Front

What is the initial charge in a taxi fare equation?

Back

The initial charge is the fixed amount charged before calculating the distance, in this case, $3.50.

Front

How do you identify an additive relationship from a graph?

Back

Look for a straight line that consistently increases or decreases, indicating a constant rate of change.

Front

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

Back

The slope represents the rate of change between the independent and dependent variables.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the value of y when x is zero, indicating the starting point of the relationship.

Front

How can you find the rule for a relationship in a table?

Back

Identify the pattern in the changes of x and y values to formulate an equation.