Multi-Step Equations
3x+7=4
x = -1
What is a function?
A function is a special type of relation in which one "x" is paired with one "y".
f(x)=2x-3
f(7)
11
2(2x+1) + 2=24
x = 5
5x-1=19
x= 4
2x-5=3
x = 4
The are the three names for the Y coordinate?
Range, output, dependent variable
f(x)= 3x+5
f(5)
20
5(x-8)-2=8
x = 10
4x+27=3x
x = -27
7x-9=5
x = 2
What is a one to one function?
A one to one function is when there is not repeats in the "x" or "y" column.
f(x) = 5x-3+4
f(10)
51
4(x+3)-2=6
x = -1
3x+4=x+12
x = 4
3x+4 = 2x-7
x = -11
What are the three names for X coordinate?
Input, Domain, Independent variable
f(x) = 4x+2-4
f(5)
18
2(m+10) = 4(m-15)
m = 40
5x-2=3x+4
x=3
12x+12y=36
36x=72
What is a relation?
A relation is a relationship between sets of values
f(x)= 12x-14+3
f(2)
7
5x + 2(x + 10) = 93
x=9
15+6x=45+8x
x= -15