Graphing
Evaluating the natural Exponential Function
Logarithmic Functions
Properties of Logarithms
Exponential and Logarithmic Equations
100

What would be the transformation of 3^(x)+1

It translated one unit up

100

Evaluate the function given by f(x) = e^x when x=-2.

Round to four decimal places.

f(-2) = e^-2 = 0.1353

100

Use the definition of logarithmic function to evaluate each logarithmic at the indicated value of x. f(x) = log(subscript 2)x when x=32

f(32) = log(subscript 2)32 = 5 

because 2^5=32 

100

Use the changing base formula to solve log(subscript 4)25.  Round to 4 decimals

log25/log4 2.3219

100

Solve. e^x=7  Round to four decimal places.

 x=ln7

x = 1.9459

200
What is the x-intercept of all non translated exponential graphs
(0,1)
200

Evaluate h(x) = e^-x when x=3/4.

Round to three decimal places.

0.472

200
Use the definition of logarithmic function to evaluate each logarithmic at the indicated value of x. f(x) = logx, x=1/100.
f(1/100)= log1/100=-2 -2
200

use the natural logarithms changing base formula to solve log(subscript 2) 12.  Round to four decimals.

ln12/ln2 =3.5850

200

Solve e^x +5=60.  Round to three decimals.

e^x=55

x=ln55

x=4.007

300

Use the graph of f to describe the transformation that yields the graph of the function. f(x)= (7/2)^x, 

g(x)= -(7/2)^(x-6)

Reflect the graph of f in the x-axis and shift six units to the right.

300

Evaluate f(x) = 5000e^(0.06x) when x=6.  Round to 3 decimal places

7166.647

300

Evaluate the function f(x) = logx when x=-2.

No solution, no real number power to which 10 can be raised to obtain -2.

300
Use the properties of logarithms to write the logarithms in terms of ln2 and ln3 : ln2/27
=ln2 - ln27 =ln2 - ln3^3 =ln2-3ln3
300

Solve 2(3^(2t-5))-4=11 

Round to three decimals.

t=3.417

400

True or False, the line y=-2 is an asymptote for the graph of f(x) = 10^(x)-2. Justify your answer by describing the transformation.

true because the graph will move down 2 units.

400

A total of 12000 is invested at an annual interest rate 9%. Find the balance after 5 years if it is compounded continuously. Use the formula A=Pe^(rt).  Round to two decimals.

=12,000e^(0.09(5)) =18,819.75

400

Solve log(x^2 - 6) = log10.

x^2 -6 = 10 

x^2 = 16 

x= plus or minus 4

400

Condense the expression to the logarithm of a single quantity. 1/4log(subscript 3) 5x

log (subscript 3) 5x to the fourth root

400

Solve. 5+2lnx=4

5+2lnx=4

2lnx=-1

lnx=-1/2

x=e^-1/2

x=0.607

500

Find the Domain, x-intercept, and vertical asymptote of the logarithmic function.  g(x) = ln(-x)

Domain: (-infinity, 0) x-intercept: (-1,0) Vertical asymptote: x=0 

500

With the given formula for compounding per year: A=P(1+r/n)^(nt). A total of 12000 is invested at an annual interest rate 9%. Find the balance after 5 years if it is compounded quarterly. Round to two decimals.

A=P(1+r/n)^nt 

A= 12000(1+ 0.09/4)^(4(5)) 

A = 18,726.11

500

Solve ln((x^2)-2) = ln23 for x.

x=-5,5

500

logx - 2logy + 3logz. Condense to a single quantity.

log(x/y^2) + logz^3 =

log ((x/y^2) * (z^3)) =

log((xz^3)/y^2)

500

You have deposited $500 in account that pays 6.75% interest, compounded continuously. how long will it take to double? Use the formula A=Pe^rt

t=10.27

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