Section+1.5

(Answers provided by Beth Anne, Dan, and Nick S.) || Student Feedback || Teacher Feedback || and only if each horizontal line intersects the graph of the original function in at most one point." Since //f// doesn't necessarily have to pass the horizontal line test, then //f//^-1 doesn't necessarily have to pass the vertical line test, meaning it won't be a one-to-one function. ||  || Incorrect ... answer is True as statement is the definition of an inverse function. ||
 * Student Answers
 * 39. False because "the inverse of a relation is a function if
 * 40. true.

when t = -3, x = -2 and y = -3. when t = -2, x = -1 and y = -1.

slope formula: __y [subscript] 2 - y[subscript]1__ x[subscript]2 - x[subscript]1

__-3 - (-1)__ = -2 - (-1)

__-2__ -1 =

2 ||  || Correct - nice explanation ... also, if you eliminate the parameter "t" you will obtain the equation y=2x+1 || Substitute 4 in for y and 1 in for x of the original equation. ||
 * 41. e ||  || Correct ||
 * 42. a ||  || Incorrect - B is the answer.
 * 43. c ||  || Correct ||
 * 44. a ||  || Correct ||