Slope!
Evaluating Function Rules
Writing Function Rules
Domain and Range
Is it a Function?
100
Find the slope of the line containing the points (2,5) (7,9)
4/5
100
Evaluate f(x)=-3x if x=2
What is -6?
100
At a coffee shop each cookie costs $1.25. Create an equation that models the given situation where
n = the number of cookies
c = total cost.
c = 1.25n
100
D: [0,infinity)
R: [-2, infinity)
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
Find the slope of the line containing the following points (-2,5) (4,7)
1/3
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
A lawn service charges $20 plus $12 per hour to mow and edge your yard. Write a function rule that models this situation.
h = hours
p = profit
p = 12h + 20
200
State the range of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {-2,1,-3,0}?
200
Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?
What is False, the points fail the vertical line test
300
Find the slope!
6/2 or 3
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
Water flows over a dam at a rate of 500 gallons per minute. Write a function rule relating the amount of water that flows over the dam to the number of minutes that have passed.
a = amount of water
m = minutes passed
a = 500m
300
State the Domain and Range of the Function
D: (-4,4)
R: (0,4]
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
400
Find the Slope!
-3/4
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
A plumber's fees are $75 for a house call and $60 per hour worked. Write a function rule given the situation.
h = hours worked
c = total cost
c = 60h + 75
400
State the Domain and Range
D: [-1,4]
R: [-4,5]
400
Is it a function?
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What is YES because it passes the Vertical Line Test?
500
Find the Slope
undefined!
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Stephanie is trying to sell t-shirts at a local coffee shop. The shop is requiring her to pay them $50 in order to sell her shirts at their business. Each t-shirt will cost $5 to make and she will sell each shirt for $20.
Write an equation where
p = total profit
n = # of t-shirts
p = 15t - 50
500
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State the Domain and Range
D: (-infinity, 1]
R: [0, infinity)
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?