Jeanine baker makes floral arrangements. she has 13different cut flowers and plans to use 5 of them. how many different selections of the 5 flowers are possible?

5 flowers to be chosen among 13 different flowers. 
Since the order doesn't matter, it's a combination of ¹³C₅

¹³C₅ = 13!/(13-5)!(5!)

¹³C₅ = 1287 WAYS

(6,1)(5,4)slope = (4 - 1) / (5 - 6) = 3/-1 = -3y = mx + bslope(m) = -3use either of ur , = 6 and y = 1now sub and find b, the y int1 = -3(6) + b1 = -18 + b1 + 18 = b19 = bso ur equation is : y = -3x + we need it in standard formy = -3x + 3x to both sides3x + y = 19 < == standard form