Chapter One

Chapter One

1. 1.2

   • Independent
     • x-axis
     • domain
     • input
   • Dependent
     • y-axis
     • range
     • output
   • Relation: Any set of ordered pairs
   • Order Pair: Input, Output (x,y)
   • Function: A relation where each input has ONLY ONE output

2. 1.4

   • An equation of h as a function of t
     • h=5t+1
   • Independent and Dependent of equation m=-2(t+3)
     • Independent variable: t
       • Dependent variable: m
   • PEMDAS
   • Vertical line test: No its not a function if it passed through two points

3. 1.5

   • y=f(x)
     • y= output
     • f= name of function
     • x= input
   • Domain: Is the set of all inputs for the function
   • Range: Is the set of all possible outputs resulting for the values of the domain

4. 1.6

   • (x,f(x))
   • f(3)=8, corresponding pair
     • (3,8)
   • (0,-1),corresponding function notation
     • f(0)=-1
   • G(m), = lml: Distance from zero (positive) (-2,2) (-1,1) (0,0) (1,1)
   • f(x)= 4: Constant function (-2,4) (-1,4) (0,4) (1,4)

5. 1.7

   • If you multiply or divide by a negative number, flip the symbol

6. 1.9

   • d=rt Solve for r
   • The number H of hours in d days: H=24d