How do you solve y=x² - 6x +9

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

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?

Select the correct answer and solve for y