Logarithmic Functions
To figure out what expression is equivalent to log519 what rule would you use?
What is the Change of Base Rule?
When simplifying rational expression you always have to look for this?
What is the Greatest Common Factor?
This always represents y in an exponential function when graphing.
What is the domain x e ir?
When the graph has one turning point it is known as?
What is a Quadratic graph?
The common end point of an angle is known as what?
What is the Vertex?
This function B= 10(logI+12) where 10 and 12 always stays the same is known as what?
What is the Decibel Scale?
The value that determines when the denominator is equal to zero is known as what?
What is the Non-permissible value?
This in an exponential function determines whether a graph is increasing or decreasing?
What is the Base?
This equation f(x)=ax2+bx+c is known as what?
What is a Quadratic equation?
An observer's line of sight above the horizon is known as what angle?
What is the Angle of Elevation?
A logarithmic function can be written as y=alogbx or as what function?
What is y=alnx?
A solution to an equation that is not permissible in the origin equation is known as what?
What is the Extraneous Root?
If 0<c<1 then the graph is known as what?
What is decreasing?
This affects the end behavior of a polynomial function.
What is the Leading Coefficient?
A function obtained by expressing the dependent variable of one function as the independent variable of another as shown in the example f(x)=y and g(y)=x is known as what?
What is Inverse Function?
What would x equal to make 27=3x true?
What is x=log327?
A solution to an equation that is permissible in the original equation but is not valid in the context of the problem is known as what?
What is the Inadmissible solution?
In this exponential function y=a(b)^x, b is known as the what?
What is the constant?
The number of turning points in this function x3-3x7+9
What is 7?
The height of a tree if the horizontal length from the top of the tree to the ground is 13 meters and the angle of elevation is 42 degrees is what?
What is sin(42)=x/13
x=13 x sin(42)
x=8.7 meters?
A logarithmic form of the equation 813/4=27?
What is log81(27)=3/4?
(8/27)-2/3= (27/8)2/3 when converted is?
What is
(27/8)2/3= (3square root of 27/8)2
(3square root of 27/8)2=(3/2)2
=32/22
=9/4?
This formula A(n)= P(1+i)^n is used for calculating the what?
What is Compound Interest?
You can also determine the number of x intercepts by looking at this when looking at a polynomial function?
What is the degree?
What is the opposite value of a triangle if the hypotenuse is 12cm and the angle is 38 degrees?
What is cos(38) = y/12
move the cos(38) over
y= 12 x cos(38)
y= 9.45cm?