horizontal and vertical lines

What is the product of the slopes of two perpendicular lines, neither of which is vertical? => Not defined or -1 or 0 or 1..

Use the vertical line test to determine whether the graph represents a function. => Yes or No..

Use horizontal line test to determine whether the graph of the function represents a one-to-one function. => Yes or No..

Select the correct representation of the ordered pair of a Letter-Post with the weight 4 oz at the Postal rate of $1.30 on the coordinate plane with the weight on the horizontal axis and the Postal rate on the vertical axis. => Plot 1 or Plot 2 or Plot 3 or Plot 4..

Select the correct representation of the ordered pair of a Letter-Post with the weight 3 oz at the Postal rate of $1.20 on the coordinate plain with the weight on the horizontal axis and the Postal rate on the vertical axis. => Plot 2 or Plot 1 or Plot 4 or Plot 3..

The word DICE has _________line of symmetry. => Vertical or Horizontal..

___ and ___ lines are always perpendicular to each other. => Horizontal, vertical or Intersecting, non-intersecting or Parallel, skew or Parallel, transversal..

Prove that diagonals of a quadrilateral formed by the line joining the midpoint of a rhombus are congruent by selecting four convenient points as the vertices of the rhombus...

Which of the following graphs represents a function? [Use vertical line test] => Graph 3 or Graph 4 or Graph 1 or Graph 2..

There are two parallel lines. 8 points are marked on one and 5 on the other. How many triangles can be formed with these points as vertices? => 66 or 11200 or 286 or 220..