Function Notation Guidance

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

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

Is this mapping a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

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

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

Your grade in algebra class is a function of how many proficient scores you earn. This function is represented by g(x), where x represents the number of proficient scores and g(x) represents your grade percentage. Explain what g(16) = 85 means in context.

• A grade of 16 means there were 85 proficient

• If I earn 16 proficient scores then my grade will be an 85%

• g is 5.3

• If I earn 85 proficients I will get a 16%

Tags

CCSS.HSF.IF.A.2

What does f(1990)=214 mean in the context of the problem?

• In 1990 there were 214 million people with health insurance

• In 214, there were 1990 people with health insurance

• When there are 1990 people, the year is 214

• None of these

Tags

CCSS.HSF.IF.A.2

If g(x) = 6(-8x + 12) + 7, what is the value of g(6)?

Mathematical Equivalence

ON

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