Exercises

Answers

295.

a. yes

b. \(\{-3,-2,-1,0,1,2,3\}\)

c. \(\{9,4,1,0\}\)


297.

a. yes

b. \(\{-3,-2,-1,0,1,2,3\}\)

c. \( \{0,1,8,27\}\)


299.

a. yes

b. \(\{-3,-2,-1,0,1,2,3\}\)

c. \(\{0,1,2,3\}\)


301.

a. no

b. {Jenny, R and y, Dennis, Emily, Raul}

c. {RHern and ez@state.edu, JKim@gmail.com, Raul@gmail.com, ESmith@state.edu, DBroen@aol.com, jenny@aol.cvom, R and y@gmail.com}


303. 

a. yes

b. yes

c. no


305.

a. yes

b. no

c. yes


307.

a. \(f(2)=7\)

b. \(f(-1)=-8 \)

c. \( f(a)=5 a-3\)


309. 

a. \(f(2)=-6\)

b. \(f(-1)=6\)

c. \(f(a)=-4 a+2\)


311.

a. \(f(2)=5\)

b. \(f(-1)=5\)

c. \(f(a)=a^{2}-a+3\)


313.

a. \(\text { (a) } f(2)=9\)

b. \(f(-1)=6\)

c. \(f(a)=2 a^{2}-a+3\)


315.

a. \(g\left(h^{2}\right)=2 h^{2}+1\)

b. \(g(x+2)=2 x+5\)

c. \(g(x)+g(2)=2 x+6\)


317.

a. \(g\left(h^{2}\right)=-3 h^{2}-2\)

b. \(g(x+2)=1-x\)

c. \(g(x)+g(2)=4-x\)


319.

a. \(g\left(h^{2}\right)=3-h^{2}\)

b. \(g(x+2)=1-x\)

c. \(g(x)+g(2)=4-x\)


321. \(2\)


323. \(6\)


325. \(22\)


327. \(4\)