Give the discriminant of the equation 0 = −x2+6x−9

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which equation represents the function on the graph?