Question 241612
Use the graph of y = x2 – 6x to answer the following:
Do you have the graph?

a) Without solving the equation (or factoring), determine the solutions to the equation x2 – 6x = 0 using only the graph.
x = 0
x = 6
--------
Answer: 
Explain how you obtain your answer(s) by looking at the graph: That's where it crosses the x-axis, or where the function is zero (y = 0).
b) Does this function have a maximum or a minimum? 
Answer: Yes
Explain how you obtain your answer by looking at the graph: There's a low point, and it's the minimum value of y.
---------------------------
c) What is the equation of the line (axis) of symmetry for this graph? 
Answer: x = 3
----------------
d) What are the coordinates of the vertex in (x, y) form? 
Answer:  (3,-9)