Fun
Evaluating Function Rules
Writing Function Rules
Graphing
Is it a Function?
100
Solve for a:
5a = 2b
What is 2b/5?
100
Evaluate f(x) = x2 - 6x + 3 for f(-2)
What is 9?
100
Function S takes a number as its input and gives the sum of the digits of the number as the output.
Describe the meaning of
S(1,805) = 14
What is the sum of the digits of 1,805 is 14?
100
The point (1,2) is in this quadrant
What is the 1st quadrant?
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
Solve for a:
5a + 2b = 0
What is a = -2b/5?
200
Evaluate f(x) = 10 - 1/2 x when f(-6)
What is 1?
200
L gives the length of a blade of grass, in centimeters, as a function of t, in days. Describe each statement in function notation.
L(4) = 10
What is after 4 days the grass is 10 centimeters long?
200
How do you graph the point (-3,4)?
What is you go left 3 units on the x-axis then go up 4 units on the y-axis?
200
True of False - For every input there is exactly one output.
What is true?
300
solve:
2x + 3y = 4
2x - 7y = 24
what is (5, -2)?
300
Evaluate f(x)=-1/2x + 14 - x when f(-4)
What is 20?
300
L gives the length of grass in centimeters as a function of time t, in days. Describe what this means.
L(10) < L(12)
What is after 10 days the blade of grass was shorter than after 12 days?
300
The signs of the points in quadrant 2
What is the (- , +)?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
400
Solve the following system of equations
5x + 3y = 33
3y = 15x - 21
What is (2.2, 4)?
400
Evaluate f(5) - f(8) for
f(x) = 2x2 + 15x
What is -123?
400
L gives the length of a blade of grass in centimeters as a function of time t, in days.
Describe what is shown below in words.
L(8) = L(20)
What is the blade of grass is the same length after 8 days and 20 days?
400
The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)
What is the third quadrant?
400
What number could the x value be so that we will not have a function?
(2, 3) , (-6,7), (8, 2), (x, 12)
What is 2, -6 or 8?
500
solve:
5x - 2y = 41
5x + 2y = 29
What is (7, -3)?
500
Evaluate f(7) + f(-8) - f(2) when f(x) =-(4x+2)
What is -6?
500
Function C gives the cost in dollars for p pounds of apples. It is represented by C(p) = 2p
Describe what this function means and find C(p) = 50
The cost of apples is $2 per pound.
p = 25?
500
What quadrant is the point (0,2) in?
What is none because the point sits on the y-axis
500
Is it a function? How do you know? 
What is NO because -2 has two possible y values?