Question

1. (Problem 4a.) Answer the following question by sketching a schematic diagram. Taking measurements of the slope of a curve at three points farther and farther to the right along the horizontal axis, the slope of the curve changes from -0.3, to -0.8, to -2.5, measured by the point method. Sketching a schematic diagram of this curve, which of the following describes the relationship illustrated in your diagram?     

Multiple choice

a.The slope is positive and decreasing.

b.The slope is negative and increasing.

c.The slope is negative and decreasing.

d.The slope is positive and increasing.

2.(Problem 10a.) Studies have found a relationship between a country's yearly rate of economic growth and the yearly rate of increase in airborne pollutants. It is believed that a higher rate of economic growth allows a country's residents to have more cars and travel more, thereby releasing more airborne pollutants. Which variable is the independent variable? Which is the dependent variable?

a.The growth rate is the independent variable and the rate of increase in airborne pollutants is the dependent variable.

b.Either variable can be the independent variable.

c.The growth rate is the dependent variable and the rate of increase in airborne pollutants is the independent variable.

3.(Problem 10d.) Studies have found a relationship between a country's yearly rate of economic growth and the yearly rate of increase in airborne pollutants. It is believed that a higher rate of economic growth allows a country's residents to have more cars and travel more, thereby releasing more airborne pollutants. How would you describe the relationship between the two variables here?   

a.The slope is positive and increasing.

b.The slope is negative and decreasing.

c.The slope is negative and increasing.

d.The slope is positive and decreasing.

Answer 1

1. Answer is c).

The slope is negative and decreasing.

Explanation: