Precalculus Exponential Functions

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

Tags

CCSS.HSF.LE.A.2

Which equation matches the graph?

• y = -(2)^x+2-3

• y = 2^x+3-2

• y = -(2)^x-2-3

• y = -(2)^x+1-2

Tags

CCSS.HSF.LE.A.2

Solve 5e^{3x - 2} + 15 = 35

• 13

• 29

• 10

• 0.87

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth

• Decay

Tags

CCSS.HSF-IF.C.8B

What transformations have happened to f(x) = 2^x if the new equation is
 g(x) = -2^(x+3) -6

• It stayed the same

• reflects, up 3, left 6

• reflects, right 3, down 6

• reflects, left 3, down 6

Tags

CCSS.HSF.BF.B.3

Zeb purchased a car for $18,500. It will depreciate (decrease in value) 16% each year. Write an equation to represent the scenario. [Hint: use P=P₀(1-r/n)^(n.t) ]

• f(x)= 18,500 (1 + 0.16)^x

• f(x)= 0.16 (18,500)^x

• f(x)= 18,500 (1 - 0.16)^x

• f(x)= 0.84 (18,500)^x

Tags

CCSS.HSF.LE.A.2

Use the properties of logarithms to condense the logarithmic expression. log₉41 + log₉33

• log₉41 X log₉33

• log₉8

• log₉74

• log₉1353

log₂(5x + 4) = 6

• 10

• 2

• 12

• 6

4^-r = 4^-3r

• no solution

• infinitely many solutions

• 1

• 0

Solve log(x) + log(x+3) = 1

• 5

• -2

• -5

• 2