Finding the Slope Between Two Points

What are the coordinates of the first point plotted on the graph?

• (7, 1)

• (-3, -1)

• (-3, 1)

• (7, -1)

What is the definition of slope?

• Run over rise

• Sum of x and y values

• Change in x over change in y

• Rise over run

Which variable is often used to represent slope?

• b

• m

• c

• k

How do you calculate the change in x between two points?

• Product of x-coordinates

• Sum of x-coordinates

• First x-coordinate minus second x-coordinate

• Second x-coordinate minus first x-coordinate

What is the change in y between the points (7, -1) and (-3, -1)?

• 10

• 0

• -10

• 1

What is the slope of the line connecting the points (7, -1) and (-3, -1)?

• -10

• 1

• 10

• 0

What type of line has a slope of zero?

• Curved line

• Horizontal line

• Diagonal line

• Vertical line

If the change in y is zero, what can be said about the line?

• It is curved

• It is vertical

• It is horizontal

• It is diagonal

What is the result of the calculation (negative 1 minus negative 1)?

• 2

• -2

• 0

• 1

Why did the slope calculation result in zero regardless of the starting and ending points?

• Because the change in x was always zero

• Because the change in y was always zero

• Because the points were the same

• Because the line was vertical