Rate of Change

What is the slope of the line passing through the points (1, 2) and (1, 5)?

• 3

• 1
• 0
• Undefined

What is the slope of a line parallel to the y-axis?

• Undefined
• Infinity
• 1
• 0

The line shown represents the amount of money y left on Mila’s coffee card. After buying 2 lattes, she has $2 left. What is an equation of the line in point-slope form?

• y − 2 = 3(x − 2)

• y − 2 = 3(x + 2)

• y + 2 = -3(x + 2)

• y − 2 = -3(x − 2)

What is the mathematical representation of slope?

What is the slope of a line parallel to the x-axis?

• Infinity
• 0
• 1
• Undefined

The table of values represents a linear relationship. Which expression could be used to find the slope of this linear relationship?

The table of values shows a linear relationship.

The y-intercept of the linear relationship is:

• (12, 0)

• (0, 6)

• (-3, 7.5)

• Not enough information to determine

A table of values representing a linear relationship is shown. Which equation models this relationship in slope-intercept form?

A line passes through the points (0, 2) and (4, 1). Complete the statement:

The slope of the line is​ ​ ​ (a)   and the y-intercept is ​ ​ (b)   so the equation of the line in slope-intercept form is​ ​ ​ (c)  

• m = 20

• m = 45

• b = 20

• The equation

  -20x + y = 45 is equivalent to the given equation.

• The equation

  y + 45= 20(x + 0) is equivalent to the given equation.