Identifying Slope on a Coordinate

What is the slope of the graphed line?

Which statement best describes the slope?

• The temperature is rising 2 degrees every hour.

• The temperature is rising 1 degree every hour.

• The temperature is dropping 2 degrees every hour.

• The temperature is dropping 1 degree every hour.

The Reading Railroad Co. is laying track according to a map that is on a coordinate grid. One group lays a rail along the line y=4/3x + 4. Another group starts to place the another rail with its endpoints at (3, 10) and (-3, 2). The Cheif Engineer needs to check that the second rail is parallel before laying anymore rails. What does he find the slope of the second rail to be?

• 4/3

• 6/8

• 8/0 (undefined)

• 0 (zero)

A quadrilateral is a trapezoid if it has one set of sides that are parallel. Verify that this is a trapezoid by finding the slope of side AB and side CD.

• Parallel, both AB and CD have slopes of 3/1

• Parallel, both AB and CD have slopes of 1/3

• Not parallel, AB has slope of 3/1 and CD has slope of 6/2

• Parallel, both AB and CD have slopes of -3/1

Verify that angle ABD is a right angle by identifying the slopes of AB and DB.

• yes, AB = -3 and DB = 1/3

• yes, AB = 3 and DB = -2/3

• yes, AB = 1/3 and DB = -1/3

• yes, AB = 3 and DB = -1/3

A triangle lies on the coordinate plane. One leg of the right angle is on the line y = 2/3x + 4. The coordinates of the vertex of the right angle is (0, 4). Could the point (4, -2) be a vertex of the triangle?

• no, the slope of the other leg is 2/3

• yes, the slope of the other leg is -2/3

• no, the slope of the other leg is -6/4

• yes, the slope of the other leg is -3/2

Identify the slope of the Equation

y=5x+3

• 5

• 3

• -3

• -5

Find the slope of the line.

• 1/2

• -1/2

• 2

• -2

What is the slope of the graph?

• 1/2

• 2

• 2/3

• -1/2