Lesson 5a (Domain and Range) Pg. 70: 1,4,8,15,16,17,22,24,33

Lesson 5. 2.2 # 1 Use a graph to find the Range of given the domain

Ans.: Range is

Lesson 5. 2.2 # 4 Use a graph to find the Range of given the domain

Ans.: Range is

Lesson 5. 2.2 # 8 Use a graph to find the Domain and Range of .

Ans.: Denominator cannot be zero

Domain: Range:

Lesson 5. 2.2 # 15 Find Domain and Range algebraically for .

Ans.: Cannot have sort of negatives

Domain: x2 - 9 >= 0, so

Range: for x above

Lesson 5. 2.2 # 16 Find Domain and Range algebraically for .

Ans.: cannot have sort(-) and demon. cannot be zero

Domain: x - 4 > 0, so

Range: since x is above, y > 0

Lesson 5. 2.2 # 17 Find Domain and Range for .

Ans.: Can have cube roots of any negative and positive numbers

Domain: is all values of x or

Range given x above is all values of y

Lesson 5. 2.2 # 22 Find Domain and Range for .

Ans.: demon. Cannot be zero

Domain: x cannot be -1 or

Range: Since given x above 1 st term never = 0, so y never quite equal 3 so

Lesson 5. 2.2 # 33 Find Domain and Range and other parameters for .

(a) p(0) = 50, p(10) = 131,

p(50) = 911

(b) Graph between

(c) Range is 50 to 1000, since t = 0 give p = 50 and t = 100 give p equal to about 1000

The rabbit population reaches a maximum about t = 100.

(d) Smallest p is when t = 0 at p = 50 and as t gets large (0.9)t => 0 so demon. = 1+0 and so p would have its largest value at 1000

Lesson 5. 2.2 # 24 Find Domain and Range from a graph shown.

Domain is

Range is