6.1 hw quiz

f(x) = x² - 5x + 1

g(x) = 7x - 2

Find (f + g)(x)

• x² + 2x -1

• x² - 12x - 1

• x² + 2x + 1

• x² - 12x + 3

f(x) = x² - 5x + 1

g(x) = 7x - 2

Find (f - g)(x)

• x² - 12x + 3

• x² + 2x - 1

• x² - 12x - 1

• x² + 2x + 3

f(x) =  $x^2$  - 5x + 1
g(x) = 7x - 2

Find (f  $\cdot$   g)(x)

•  $7x^3\ -37x^2\ +17x\ -\ 2$ 

•  $7x^3-33x^2\ +\ 17x\ -\ 2$  

•  $7x^3\ -\ 37x^2\ -3x\ -2$  

•  $7x^3\ -33x^2\ -3x\ -\ 2$  

f(x) =  $x^2$  - 5x + 1
g(x) = 7x - 2

Find  $\left(\frac{f}{g}\right)\left(x\right)$  

•  $\frac{x^2-5x+1}{7x-2}$  

•  $\frac{7x-2}{x^2-5x+1}$  

•  $\frac{x^2}{2x-1}$  

•  $x^2-\frac{5x}{7}-\frac{1}{2}$  

What is the domain restriction for 

 $\frac{5x-3}{2x\ +\ 7}$  

•  $x\ne\ \frac{-7}{2}$  

•  $x\ne\frac{2}{7}$  

•  $x\ne\frac{3}{5}$  

•  $x\ne\frac{-5}{3}$