Functional Relationships
Plug It In, Plug It In
Home, Home on the Range
A Situationship
Zoom-Zoom
100
Is this a function? Why or why not?
No, it fails the vertical line test which indicates more than one output for an input.
100
Find the total of f(3) and the value of x if f(x) = 4.
9 + 2 = 11
100
Find the domain and range of the function,
(3,4) (4,7) (5, 10) (6,7)
Domain: {3, 4, 5, 6}
Range: {4, 7, 10}
100
When did sales decrease? How much did it decrease by?
2013-2014, $2,000
100
Zummo's height
5 ft 10 in
200
Is the relation below a function? Why or why not?
(-2, 10) (3, 15) (8, 20) (-2, 5) (5, 30)
No, -2 has two outputs
200
What is f(1)? What is the value of x if f(x) = 0?
-3; -2 and 2
200
Give the domain and range as an inequality.
Domain: x >= -4
Range: y >= 0
200
Which month shows the sharpest decline? What is the range of the number of bicycles sold?
May, 20 to 50 bicycles
200
Zummo's favorite MarioKart character
Mario
300
A student states the relation above is not a function because 7 and 13 each have two values being mapped to them. Explain the error.
Answers may vary
300
h(x) = 4x2 - 3x, find h(5).
h(5) = 85
300
Give the domain as an inequality. If a student says the range is between -2 and 8, what mistake have they made?
Domain: -6 <= x <= 20
Answers may vary.
300
During what time interval(s) is the object moving at a constant speed? How do you know?
From C to D
300
Zummo's preferred method of cooking eggs
Over medium
400
Is g(x)= 4x + 7 a function? How can you tell?
Yes, each input will have exactly one output.
400
w(x) = 0.5x - 2.5
Find x if w(x) = 4.5
x = 14
400
Give the domain and range as inequalities if possible.
Domain: x < 2 or x >= 4
Range: y <= 2 or y >= 6
400
Order the intervals A-D from fastest to slowest.
CDAB
400
Zummo's favorite food combination/meal
cheeseburger, fries, and coke