the function f(x) = –x2 – 4x + 5 is shown on the graph.

which statement about the function is true?
a the domain of the function is all real numbers less than or equal to −2.
b the domain of the function is all real numbers less than or equal to 9.
c the range of the function is all real numbers less than or equal to −2.
d the range of the function is all real numbers less than or equal to 9.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.