Which of the following statements are true regarding functions? *check all that apply a. the horizontal line test may be used to determine whether a function is one-to-one. b. a function is a relation in which each value of the input variable is paired with exactly one value of the output variable. c. the vertical line test may be used to determine whether a function is one-to-one. d. a sequence is a function whose domain is the set of real numbers.

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation