Linear Relationships and Slope

The height of an Elm tree in inches, y, and the number of years, x, is in a proportional relationship. Suppose an Elm tree grows 8 inches each year. What equation represents this relationship?

• y = 8 x

• 8 = y (x)

• x + y = 8

• y = -5x

A turtle is crawling up a hill that rises 6 feet for every horizontal change of 36 feet. Which of the following represents the slope of the hill, as a fraction in simplest form?

The cost of ground beef varies directly with the number of pounds bought. Suppose 2 pounds cost $8.40. How much would 10.5 pounds of beef cost?

An equation that gives a straight line.

• Linear Equation

• Slope Formula

• Exponential Equation

• Direct-Intercept Equation

Describes a straight-line relationship between two variables.

• Slope Formula

• Linear Relationship

• Slope

• y-intercept

• Slope

• y-intercept

• x-intercept

• SUS

Is the change in y over the change in x.

• y-intercept

• Rate of Change

• x-intercept

• Constant of y-intercept

Where the line crosses the y-axis is called the...

• x-intercept

• Slope

• y-intercept

• Origin

• y-intercept

• Constant of Intercept

• Constant of Proportionality