unit 6 test

For the following function, is the interval always "increasing" or "decreasing" and what is the interval upon which it's increasing or decreasing?  $f(x)=4(2)^{x-3}−1$  

•  $Decrease;\ \left(-\infty,\infty\right)$  

•  $Increase;\ \left(-1,\infty\right)$  

•  $Increase;\ \left(-\infty,\infty\right)$  

•  $Decrease;\ \left(-1,\infty\right)$  

For the following function, what is the appropriate end behavior?  $f(x)=4(2)^{x-3}-1$  

•  $x\rightarrow-\infty,\ y\rightarrow-\infty;\ x\rightarrow\infty,\ y\rightarrow1$  

•  $x\rightarrow-\infty,\ y\rightarrow-1;\ x\rightarrow\infty,\ y\rightarrow\infty$  

•  $x\rightarrow-\infty,\ y\rightarrow-\infty;\ x\rightarrow\infty,\ y\rightarrow\infty$  

•  $x\rightarrow-\infty,\ y\rightarrow\infty;\ x\rightarrow\infty,\ y\rightarrow-1$  

Which is the correct graph for the following function?  $f\left(x\right)=4\left(2\right)^{x-3}-1$  

• 
• 
• 
• 

Which is the correct graph for the following function?  $f\left(x\right)=-\left(\frac{1}{5}\right)^x-4$  

• 
• 
• 
• 

Write the recursive formula for 6, 17, 28, 39, 50....

• a_n=a_n-1+11
  a₁=6
• a_n=a_n-1-4
  a₁=6
• a_n=a_n-1+9
  a₁=6
• a_n=a_n-1+6
  a₁=6

Write a recursive rule for the sequence a_n = 17 + (n-1)(-16)

• a₁ = 17
  a_n = a_n-1 + 16
• a₁ = 17
  a_n = a_n-1 - 17
• a₁ = 17
  a_n = a_n-1 - 15
• a₁ = 17
  a_n = a_n-1 - 16

Is the given sequence geometric?

• Yes

• No

• Cannot be determined

Which sequence is represented by the equation 2(7)^n-1 ?

• 7, 14, 28, 56...
• 2, 14, 98, 686...
• 2, 9, 16, 23...
• 7,9,11,13...

• Rational (R)

• Irrational (I)

• Rational (R)

• Irrational (I)