8.5c: Slope Concepts

What is the formula to calculate the slope of a line?

• (y2 - y1) / (x2 - x1)

• x2 - x1 / y2 - y1

• y2 - y1 * x2 - x1

• 2y - 2x / 2

What does a slope of 0 indicate about a line?

• The line has a positive slope

• The line is vertical

• The line is horizontal

• The line is curved

If the slope of a line is undefined, what does it mean?

• The line is vertical

• The line is horizontal

• The line has a positive slope

• The line has a negative slope

How do you find the slope of a line given two points on it?

• (y2 - y1) / (x2 - x1)

• x1 - x2 / y1 - y2

• x2 - x1 / y2 - y1

• y1 - y2 / x1 - x2

Calculate the slope of the line passing through the points (2, 3) and (5, 9).

• 3

• 2

• 10

• 5

Find the slope of the line that passes through the points (-3, 4) and (1, 7).

• 5

• 3/4

• 10

• 4/3

What is the slope of the line that passes through the points (-1, 3) and (2, 3)?

• 1

• -2

• 3

• 0

Describe how the rise over run method is used to calculate the slope of a line.

• Slope is calculated by multiplying the change in y-values by the change in x-values using the formula (y2 - y1) * (x2 - x1).

• Slope is calculated by taking the square root of the change in y-values divided by the change in x-values using the formula √(y2 - y1) / (x2 - x1).

• Slope is calculated by adding the change in y-values to the change in x-values using the formula (y2 + y1) + (x2 + x1).

• Slope is calculated by dividing the change in y-values by the change in x-values using the formula (y2 - y1) / (x2 - x1).

Find the slope of the line represented by the equation y = 2x + 4.

• 2

• 6

• 4

• 3

Calculate the slope of the line given by the equation y = -3x + 2.

• 1/3

• 0

• 5

• -3