Entered Result 0153 88 015334188 3281101477 326 101477 At le
Entered Result 0.153 .88 0.15334+188 3.2811.01477) 3.26 1.01477 At least ene of ho answers aboveNOT correct (t point) Let P(e) be the population of a counry, in millions, t years afher 1990, with P(9)-3.26 and Pt12) -3.72 Find a formula for Pit) assuming that it is linea P(t) 1533-1.88 help (formulas) Pt)-3.261 01477 help (formulas) Note: You can eam partial credt on this probe Preview My was recorded You have attemptod this problem 13 es You received a scone of 50% for thism You have unlirmited anempts remaining
Solution
(9,3.36),(12,3.72)
slope= (3.72-3.36)/(12-9)= 0.12
Using point slope form
P(t)- 3.36=0.12(t-9)
P(t)= 0.12t +4.44
b. P(t)= abt
3.36= a b9
3.72= a b12
3.72/3.36= b3
b=1.0345
3.72=a (1.0345)12
a= 2.47615
P(t)= 2.47615(1.0345)t
