PreCalculus: Exponentials and Logs Review

What is the domain of f(x) = log (x + 5)?

• [-5, ∞)
• (-5, ∞)
• (-∞, ∞)
• (-∞, 2)

What is the range of f(x) = log (x + 5)?

• [-5, ∞)
• (-5, ∞)
• (-∞, ∞)
• (-∞, 2)

What is the domain of f(x) = 3^x + 2 ?

• (-∞, ∞)
• (2, ∞)
• (-∞, 3)
• [2, ∞)

What is the range of f(x) = 3^x + 2 ?

• (-∞, ∞)
• (2, ∞)
• (-∞, 3)
• [2, ∞)

Solve the equation:
7ⁿ⁺¹⁰- 8 = 6

• -7.374
• -8.643
• -7.360
• -8.853

Tags

CCSS.7.EE.B.4A

Solve:

• (log(2)-5)/6
• (ln(-8)+5)/6
• (ln(3)+5)/6
• (ln(2)+5)/6

Solve:  (4/3)^1-x = 5^x

• no solution
• 0
• .165
• .152

Solve:  
log (x+2) + log (x-1) = 1 

• A {-4, 3}
• B {3}
• C {1.303}
• D  no solution

Solve:  
 

• A 
• B 
• C 
• D

Solve:  
5 ln (2x) = 15

• 20.086
• 1.948
• 10.043
• no solution

Tags

CCSS.HSF.BF.B.5