Dusting Off the Snow

Find the domain and range for the following function:  y = -4 ( 0.3 )^x

• D:  all real;  R:  y<0
• D:  y<0;  R:  all real
• D:  all real;  R:  y>0
• D:  y<0;  R:  all real

Which function represents exponential decay?

• y = x³
• y = 2 ( 1/3 )^x
• y = -x³
• y = -2 ( 3 )^x

Which function represents exponential growth?

• y = x⁵
• y = 3 (1/5 )^x
• y = -3 ( 5 )^x
• y = 100 ( 0.25 )^x

Tags

CCSS.HSF-LE.A.1A

What is the base for all common logs?

• 10
• 2
• 1
• it depends

What day does February 1st fall on this year?

• Tuesday
• Wednesday
• Thursday
• Friday

Write the equation 3⁵ = 243 in log form.

• log₃ 243 = 5
• log₃ 5 = 243
• log₅ 243 = 3
• log₅ 3 = 243

Tags

CCSS.HSF.BF.B.5

Write the equation log₅ 625 = 4 in exponential form.

• 5⁴ = 625
• 5⁶²⁵ = 4
• 4⁵ = 625
• 4⁶²⁵ = 5

Tags

CCSS.HSF.BF.B.5

Solve the equation:  125^3x-4 = 25^4x+2

• -6
• 8
• 16
• 14

Solve:  log₆ x = -3

• 18
• 1/216
• -18
• -1/2

Tags

CCSS.HSF.BF.B.5

Evaluate:  log₇ (1/49)

• -½
• ½
• 2
• -2