Functions: Domain, Range, Composition
Functions: Inverses
Functions: Transformations
Exponents
Logarithm
100
- Domain: set of values that can imputed into the functions - Range: the set of values the functions produces
What are the definitions for domain and range?
100
- The horizontal line test.
What test does a function have to be able to pass to be “one-to-one”?
100
- Shifted right 2 and up 3 from the original equation f(x)= x^2
Graph the equation f(x) = (x-2)^2 +3 and f(x) =x^2 as the original equation. How is the equation transformed?
100
5^32 (simplified through multiplication)
Simplify 5^x * 5^y x+y= 32
100
Log?(x)=y -base
Log?(x)=y What does the question mark represent?
200
-For every input there is only one output. -Function: a straight horizontal line Not a Function: a circle
What is the main rule of a function? Give an example of a function and something that is not a function.
200
x x^2 1 2 2 4 3 9 x √x 2 1 4 2 9 3 You can conclude that these tables are inverses of each other.
What do you can you conclude from both these tables.
200
- If b is “+b” than it is shifted left but if its “-b” than it is shifted right - If c is “+c” than it is shifted up but if its “-c” than it is shifted down
Give the general rules of transformations using the equation f(x) = (x+b) +c.
200
12^3 (simplified through division)
Simplify 12^x/ 12^y x-y= 3
200
Log x(??)=y -argument
What does the question mark represent?
300
x (independent) y (dependent) 1 1 2 2 3 3 3 4 4 5 2 6 1 7 You can conclude that this is not a function because there are several outputs that are the same.
What can you conclude from this table? Explain why:
300
- No it is not possible for this parent function, because it’s “inverse” wouldn’t be a function because it wouldn’t pass the vertical line test.
Is it possible for the parent function f(x)= x^2 to have an inverse? Explain your reasoning.
300
- Given f(x) and “c” is a constant - c*f(x) and c>1 it is vertically stretched but if 01 it is horizontally shrunk but if 0
Give the general rules of dilation
300
- (a*a*a*…) --> m - (a*a*a…)(a*a*a…)(a*a*a…)(…) --> n - a^mn --> power of the power
Justify (a^m)^n= a^m*n
300
It finds the exponent that you have to raise a base number to, in order to get the argument.
What is the point of a Logarithm?
400
- Domain: All Real Numbers - Range: [-3,infinity) - Parent Function: quadratic
State the domain, range, and the of this function: y= 2(x-5)^(2)-3
400
Inverse is: g(x)=(1/2)x-3
What is the inverse of the equation f(x)= 2x+3
400
- Cubic; vertically stretched by 2; up 45; right 5 from the function f(x)= x^3
Graph the equation f(x)= 2(x-5)^3 +45. How it is transformed from the parent function?
400
(a^m)/(a^n)= a^m* (1/(a^n))= a^m* a^-n =a^(m+(-n)) =a^(m-n)
Justify (a^m)/(a^n)=a^(m-n)
400
Given that b>0 and b not equal to 1. y=b^x if and only if log b (y)=x
What is the definition of a Logarithm?
500
f(x)= x^2 and g(x)= x-1 ???????= 35
If f(x)= x^2 and g(x)= x-1, find g(f(6)):
500
- y=x
Over what equation do inverses reflect from their original equation?
500
Table before transformation x y -2 1 0 -2 1 3 4 2 Answer of transformation x y -2 3 0 -3 1 7 4 5
If the table below were f(x) and it was transformed: 2(fx)+1. What would the table look like now?
500
- n√a= a^(1/n) - n√a^m= a^m * a^(1/n)= (a^(m/n)) - (n√a)^m= a^(1/n) * a^m= a^(m/n) - n√a^m= (a^m)^(1/n)= a^(m/n)
Explain why (a^(m/n))= n√a^m= (n√a)^m
500
- Any logarithm in which the base and he argument are the same it will =1 -Any logarithm in which the argument is 1 will =0
What are two properties of logarithm?