Which of the following statements are not true regarding functions. ? A. the horizontal line test may be used to determine whether a function is one to one.

B. a function is related in which each value of the input variable is paired with at least one variable of the output variable.

C. a sequence is a function whose domain is the set of natural numbers.

D. the vertical line test may be used to determine whether a function is one to one .

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

i'll be glad to : )

the cost function, c(x), is the total cost of manufacturing x units of the product. how many units must the company produce and sell if they wish to make a b. if the company produces and sells 2000 units, would they obtain a profit or loss?