1. (x+3)2+(y−4)2=2(x+3)2+(y−4)2=2
2. Symmetric about the x-axis
3. x-intercept: −1, 0, 3;−1, 0, 3; y-intercept: 0
4.
5. y=−x+9y=−x+9
6. y=4x−9y=4x−9
7. −36−36
8. −1−1
9. x4−4x3+2x2+4xx4−4x3+2x2+4x
10.
f(−1)=−3f(−1)=−3
f(0)=−2f(0)=−2
f(1)=−1f(1)=−1
11. [0, 1)
12. 2
13. Even
14. Increasing on (−∞, 0)∪(2, ∞),(−∞, 0)∪(2, ∞), decreasing on (0, 2)
15. Shift the graph of y=x−−√y=x 3 units to the right, stretch the graph of y=x−3−−−−−√y=x−3 vertically by a factor of 2, and shift the graph of y=2x−3−−−−−√y=2x−3 4 units up.
16. 2.5 sec
17. 2
18. f−1(x)=xx−2f−1(x)=xx−2
19. A(x)=100x+1000A(x)=100x+1000
20.
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