Which are true of the function f(x) = 49
2
Select three options
The domain is the set of all real numbers.
The range is the set of all real numbers.
. The domain is x > 0.
The range is y> 0.
As x increases by 1, each y-value is one-seventh of the previous y-value.

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the