Function Notation
What is f(2): f(x)=x
2
What is a Domain?
The domain of a function is the set of its possible inputs (x-values).
What is f(3): f(x)=4x
12
Find the slope of: y=3x-2
m=3
What is 1+1?
2
What is f(17): f(x)=3x
51
What is the range?
The range of a function is the set of its possible outputs (y-values).
What is f(2): f(x)=5x-10
0
Find the slope of: 2x+y=4
m=-2
What is 9 times 9?
81
What is f(9): f(x)=4x-59
-23
What is the domain of: {(1,-1), (2,3), (0,5), (-1,3), (4,-5)}
Domain: {-1,0,1,2,4}
What is f(-5): f(x)=3x+24
9
Find the slope of: 5x-3y=9
m= 5/3
What is the square root of 625?
25
What is f(25): f(x)=6x+200
350
What is the domain of: {(1,-1), (2,3), (0,5), (-1,3), (4,-5)}
Range:{-5,-1,3,5}
What is f(8): f(x)=4x-50
-18
Find the slope of: (1,4) and (2,8)
m=4
What is 42 times 48?
410 or 1,048,576
Who is the Principal of FAMU DRS Middle School?
Ms.Barnes
Felipe states that he can use the inequality 1 ≤ x ≤ 4 to describe the domain {1, 2, 3, 4} for a given function. Explain Felipe’s error.
Felipe inequality includes all real numbers between 1 and 4. The domain is only the integers between 1 and 4.
What is f(10): f(x)=20(4x-30)+45
245
Find the slope of: (6,13) and (20,8)
m=-5/14
If 2x+3=29, what is x?
x=13