Reading Functions
Writing Functions
Function Graphs
Equations and Functions
100
Function "f" gives the weight of a person when they are "a" years old. What does f(15)=100 mean?
The person weighs 100 lbs when they are 15
100
Use function notation to write this statement: 3 seconds after throwing the ball it was 5 feet in the air.
f(3)=5
100
True or False: f(4)=f(11)
True, f(4)= 4 and f(11)= 4
100
f(x)= 3x + 10
What would be the output for f(5)
f(5)= 3(5) + 10 = 25
200
Function J gives the temperature of your meal after "m" minutes in the microwave.
What does J(2) mean?
The temperature of your meal after 2 minutes in the microwave
200
Students are selling cupcakes to raise money for their school. Write a function to represent the amount of money they have after selling "c" cupcakes.
f(c)
200
What is f(0)?
About 65
200
f(x)= 2x - 5
What is the input if f(x)=15
10
15=2x-5
20=2x
10= x
300
The function J represents the temperature of your meal after "m" minutes in the microwave.
What does J(5)= 120 mean?
After 5 minutes your meal is 120 degrees
300
Students are selling cupcakes for Best Buddies, the function M represents the amount of money the students have after selling "c" cupcakes.
Write a function to show that after they sell 10 cupcakes they will have $20.
M(10)=20
300
This graph shows the arc of a ball that is thrown. When does the ball hit the ground and when is it highest?
Hits the ground after 4 seconds; highest at 1.5 seconds
300
f(x)= 3x + 15
What does f(5) equal?
f(5)= 30
f(5)= 3(5) + 15
f(5)= 15 + 15
f(5) = 30