Strength of Correlation — Unit test Answers

The cost of a taxi ride is a linear function of the distance traveled. If a 5-mile ride costs $12 and a 9-mile ride costs $14, which equation can be used to find the cost, c, for any distance, m, traveled?

The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table.

What is the equation of the line in slope-intercept form that is perpendicular to the line y = x – 2 and passes through the point (–12, 10)?

The table shows the average number of hours of daylight per day for the last four months of the year.

A line of best fit is drawn for the set of points shown on the graph.

What is the equation of a line with a slope of –2 that passes through the point (6, 8)?

Question text not available

A graph shows the horizontal axis numbered 1 to 5 and the vertical axis numbered 1 to 5. Points and a line show a downward trend.

What is the equation of the line perpendicular to that passes through the point (12, –6)?

The weight, w, in tons of a school bus is related linearly to its seating capacity, p. A 60-passenger bus weighs 10 tons, and an 84-passenger school bus weighs 13 tons. Which equation can be used to find the weight of a 50-passenger bus?

Which best describes the strength of the model with an r-value of –0.93?

The table shows the shoe sizes of women of different ages.

The graph shows the relationship between the price of frozen yogurt and the number of ounces of frozen yogurt sold at different stores and restaurants.

The table shows the height, in meters, of an object that is dropped as time passes until the object hits the ground.A line of best fit for the data is represented by h = –21.962x + 114.655. Which statement compares the line of best fit with the actual data given by the table?

What is the slope of a line that is perpendicular to the line x = –3?