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The topic along with functions which we ought to deal with is combining functions. For the most part this means performing fundamental arithmetic (subtraction, addition, multiplication, & division) with functions. There is one new means of combing functions which we'll need to look at as well.
Let's begin with basic arithmetic of functions. Given two functions f(x) & g(x) we have the following notation & operations.
( f + g )( x) =f ( x ) + g ( x ) ( f - g )( x ) =f ( x ) - g ( x )
( fg ) ( x ) = f ( x ) g ( x ) (f /g) ( x ) = f ( x )/ g ( x )
Sometimes we will drop the ( x )part & just write down the following,
f + g = f ( x ) + g ( x ) f - g=f ( x ) - g ( x )
fg =f ( x ) g ( x ) f/g = f ( x ) /g ( x )
Note as well that we put x's in the parenthesis, however we will frequently put in numbers as well.
Each side of a square is increased 4 inches. When this happens, the area is multiplied by 25. How many inches in the side of the original square?
Give the slope of each line and determine whether the 2 lines are parallel, perpendicular or neither: 4x+3y=9 and -9x+12y=0
the set of data shows of score of 25 students in their periodical test. 34 35 40 40 48 21 20 19 34 45 19 17 18 15 16 21 20 18 17 10 19 17 29 45 50 1. what score is typical t
5x-3y-11=0 and 3x+10y+17=0 Solve for all variables in each system of equations
In this section we are going to solve inequalities which involve rational expressions. The procedure for solving rational inequalities is closely identical to the procedure for sol
As a last topic in this section we have to briefly talk about how to take a parabola in the general form & convert it into the following form
f(-4)=-2-4=3
on my math home work it says draw a numberline and put the following numbers on order -2.5 2.5 4\3 10percent -100percent -6\3 02 [-4] o -4\5
Would like to have materials in Algebra 1 . something that will pertain to our 2015-2016 teks
f(x) = x3 - 9x + 3
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