Devin's Makeup #5

Domain of all polynomials is -oo,oo
Range of all odds is -oo,oo
Range of all quadratics is vertex,oo or -oo,vertex

With fractions
-set bottom equal to zero
-solve for x
-set up intervals
(-oo, )( , )...( ,oo)

With Absolute Value
Domain - (-oo,oo)
RAnge [shift,oo) or (-oo,shift]

With Square roots
-set inside = 0
-set up a # line
-try values in either side
-eliminate anything -ve
-set up intervals

Domain-x-value
Range-y-values
-() means not included
-[] means included

Ex- y=x^2+5x+6
domain- -oo,oo
range- -5/2,oo

Ex. x+4/x2-25
domain -00,-5U-5,oo

Ex. x+4-1
domain -oo,oo
range [-1,oo)