Coordinate Graph

In the standard (x,y) coordiante plane, the line l contains the points (3,5) and (5,8), and the line m contains the points (3,1) and (0,k). If line l and k are perpendicular, what is the value of k?

• -3

• -1.5

• -1

• 3

• 5

In the standard (x,y) coordinate plane, line r conatins the points (6,5) and (b,-5), and the line t contains the points (4,3) and (0,b). If lines r and t are parallel, which of the following is a possible value of b?

• -2

• 1

• 2

• 3

• (1,1)

• (2,2)

• (3,3)

• (4,4)

• (1,1)

• (1,2)

• (1,3)

• (1,4)

• x- axis
  

• y- axis
  

• Origin

• x- coordinate
  

• x_axis
  

• y- axis
  

• origin

• Y- coordinate
  

• X-axis
  

• Y-axis

• Origin

• Line

• 1

• A

• 5

• 4

• 5

• 4

• 3

• 2

• 2

• 1

• -3

• -2