Given vector u = (1, (3) and v = (1, -1), how are the vectors related? The vectors form an acute angle of approximately 75º.
The vectors form an acute angle of approximately 81°.
The vectors form an obtuse angle of approximately 99º.
The vectors form an obtuse angle of approximately 105°.

Which graph represents the parent function of y=(x+2)(x-2)

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done