Function Notation Notes

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x - 3

• Can't be written in function notation

Tags

CCSS.HSF.IF.A.2

Is the relation a function? Why?

• Yes, because the x-value 11 has two y-values paired with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values paired with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

​ (a)   ​ (b)  

The notation ​ (c)   . If f is a function, and x is in its domain, then ​ (d)   corresponding to the input of x. You can use letters other than f to name a function, ​ (e)   .

• Function notation
• such as g or h

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The notation ​ . If f is a function, and x is in its domain, then ​ corresponding to the input of x. You can use letters other than f to name a function, ​ .

• Function notation

• such as g or h

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Function f gives the temperature, in Celsius, t hours after midnight. Use function notation to write an equation or expression for each statement.

The temperature was the same at 9 a.m. and at 4 p.m.

• f(9) = f(4)

• f(9) = f(16)

• f(9) = 4

• f(9) = 16

Tags

CCSS.HSF.IF.A.2

Function f gives the temperature, in Celsius, t hours after midnight. Use function notation to write an equation or expression for each statement. The temperature was the same at 9 a.m. and at 4 p.m.

• f(9) = f(4)

• f(9) = f(16)

• f(9) = 4

• f(9) = 16

Tags

CCSS.HSF.IF.A.2

Given the function, f, shown on the graph, what is the value of f(3)?

• 0

• 2

• 6

• 1

Tags

CCSS.HSF.IF.A.2

If f(x) = 3x - 9, find f(5).

• f(5) = 6

• f(5) = 16

• f(5) = -4

• f(5) = 24

Tags

CCSS.HSF.IF.A.2

How do you read f(x)?

• "f x"

• "f of x"

• "f parenthesis x"

• "f with an x inside parenthesis"

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1