Linear Equations

What is the formula for finding the slope of a linear equation?

• (y2 - y1)/(x2 - x1)

• (y2 - y1)*(x2 - x1)

• (x2 - x1)/(y2 - y1)

• (y1 - y2)/(x1 - x2)

Given the equation y = 2x + 3, what is the slope?

• 2

• 4

• 0

• 1

Given the equation 3y = 6x + 9, what is the slope?

• 5

• 4

• 2

• 3

What is the slope of a horizontal line?

• 0

• infinity

• undefined

• 1

What is the slope of a vertical line?

• 0

• 1

• infinity

• undefined

Given the graph of a line, how can you find the slope?

• Find the change in x-coordinates divided by the change in y-coordinates between any two points on the line.

• Multiply the y-coordinate by the x-coordinate of any point on the line.

• Divide the y-coordinate by the x-coordinate of any point on the line.

• Find the change in y-coordinates divided by the change in x-coordinates between any two points on the line.

Given two points (2, 5) and (4, 9), what is the slope of the line passing through these points?

• 5

• 4

• 3

• 2

Given two points (-3, 7) and (5, -1), what is the slope of the line passing through these points?

• 1

• 0

• 2

• -1

Given two points (0, 4) and (6, 10), what is the slope of the line passing through these points?

• 2

• 1

• 3

• 4

Given two points (-2, -3) and (2, 1), what is the slope of the line passing through these points?

• -1

• 2

• 1

• 0