MATH 1513 COLLEGE ALGEBRA

 

Answers for Test 4 Review

 

1) B

2) A

3) A) -3,-1, 0, 2 B) negative C) Quartic

4) 547 days

5) The population increases.

6) 5 hundred thousand (500,000)

7)

8) -2, 1

9) 11,250 gadgets at $137.50 each

10) Not Linear

 

 

11) y = 67.3 + 1.07x

12) y = -.23178x2 + 220.75061x 10440.46873 (These are the coefficients when using the y-values in thousands); $42,000

13) 800 ft

14) 26.21 mm

15) d(t) = 4.9t2; 828.1 meters

16) y = .100595x2 -.723214x + 5.551786; 4.27 million

17) 1.56 m

18) P(t) =

19) y = .18209(1.836107)x ; 12.8 million