Unit 3 Assignment Answers 1) a) D = {xER} R = {y > 1, yER

Unit 3 Assignment Answers
1) a) D = {xER}
R = {y > 1, yER} Asymptote y = 1 y-int = 1027/1024
Inverse D = {x>1, xER} R={yER} Asymptote x = 1 x-int = 1027/1024
2)
3)
4)
5)
6)
x-int DNE
y-int DNE
b) D = {xER}
R = {y < -1, yER} Asymptote y = -1 y – int = -83/81
x – int DNE
c) D = {xER}
R = {y > 2, yER}
x – int DNE
d) D = {xER}
R = {y < -2, yER} Asymptote y = -2 y – int = -251/125
Asymptote y = 2 y – int = 21/8
a)
b)
Half-life = 3.65 minutes
After approximately 26.7 years
Doubling period 5.3 years
After approximately 25.8 years
7)
8) K=42
9)
10) 625
11) A) (23x – 1015)(17x + 44)
B) (31x + 1273)(19x – 89)
x – int DNE