A triangle has vertices at (1, 1), (1, 4), and (−3, 4). What are the coordinates of the orthocenter?

Find an equation of the line perpendicular to the graph.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?