Flu has spread in school such that after x days, the number of sick students f(x) is given by f(x)=15x-x² where 0<or equal to x <or equal to 15. a. at what rate had flu spread after first day

b. when the flu has spread at the rate of 3 students per day, how many students where sick.

c. what is the value of x when f'(x)=0? Find the value of spread at this value of x interpret the value

d. what happens atfer the 10^th day

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

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.

Find the zeros of each function. f(x) = x^2 + 5x - 6