Domain and Range
Function or not??
Evaluate the function
Graph (100 - 300)
Word Problems (400-500)
Fractions
100
State the domain of the given coordinates (5, 2) (1, 7) (2, 3)
{1, 2, 5}
100
Determine whether or not the following relation is a function (3, 2) (4, 7) (6, 8)
YES the relation is a function
100
Evaluate the function y = x + 1 when x = 10
y = 11
100
Graph the points (4, 5) (1, 3) (0, 4)
See graph
100
Find the answer 1/4 + 1/4
2/4 or 1/2
200
State the range of the given coordinates (4, 1) (5, -2) (2, 3)
{-2, 1, 3}
200
Determine whether or not the following relation is a function (-2, 3) (3, -2) (8, 0) (4, -2)
YES the relation is a function
200
Evaluate the function y = 3x + 4 when x = 2
y = 10
200
Graph the points (-1, -4) (2, -6) (-3, 4)
See graph
200
1/4 + 2/4
3/4
300
State the domain for the given values x y 3 4 2 7 7 6 2 6
Domain = {2, 3, 7}
300
Determine whether or not the following relation is a function x y 4 2 5 4 3 2 1 5 -1 3
YES it is a function
300
Evaluate the function y = 5x - 6 x = 2
y = 4
300
Graph the line of the equation f(x) = 2x + 4 using the table of values x y -1 0 1 2
(-1, 2) (0, 4) (1, 6) (2, 8)
300
1/2 x 1/2
1/4
400
State the domain and range for the given coordinates (3, 8) (-2, 0) (0, 6) (5, -1)
Domain = {-2, 0, 3, 5} Range = {-1, 0, 6, 8}
400
Determine whether or not the following relations a) and b) are functions and state why a) (4, 6) (2, 7) (6, 2) (4, -1) (7, 1) b) (11, 18) (18, 7) (17, 15) (16, 17) (13, 13)
a) NOT a function because the 4 repeats b) function - no x values repeat
400
Evaluate the function y = 2x + 3 to find the range when the domain is {-1, 1, 2}
Range = {1, 5, 7} y = 2(-1) + 3 y = 2(1) + 3 y = 2(2) + 3 y = -2 + 3 y = 2 + 3 y = 4 + 3 y = 1 y = 5 y = 7
400
Ms. B has a job selling ice cream where she makes $10 per hour that she works. The total amount of money she makes f(h) each shift is a function of how many hours (h) she works. Use the function rule f(h) = 10h to determine how much money Ms. B makes if she works 3 hours, 5 hours and 8 hours. Make sure to include UNITS when you answer!!
f(3) = 10 (3) f(5) = 10 (5) f(8) = 10 (8) f(3) = $30 f(5) = $50 f(8) = $80
400
1/4 x 2/4
2/16 or 1/8
500
State the domain and range (2, 3) (3, 2) (2, 6) (6, 1) (1, 5) (3, 4) (4, 2)
Domain = {1, 2, 3, 4, 6} Range = {1, 2, 3, 4, 5, 6}
500
Determine whether or not the following relations are functions and tell why a) (-1, 1) (-2, 0) (1, 0) (0, -1) (2, 1) b) (101, 0) (-101, 101) (0, 0) (-101, 0) (0, -101) c) (2, 1) (-1, 101) (0, -110) (101, 2) (2, 101) (-101, 110)
a) YES - no x values repeat b) NO - 0, - 101 repeat as x values c) NO 2 repeats as an x value
500
Evaluate the function f(x) = 3x - 4 to find the range when the domain is {-2, 0, 3, 4}
Range = {-10, -4, 5, 8}
500
Suppose a car gets 25 mile/gallon. The distance traveled D(g) is a function of the gallons used. Use the rule D(g) = 25g to make a table of values to determine how far the car can travel with the different amounts of gas. Use your own table of values. Hint* only use positive numbers.
Answers will vary.
500
2 x 1/2
1
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