Evaluate Functions

Front

What does it mean to find f(2) in a function?

Back

It means to substitute x with 2 in the function.

Tags

CCSS.HSF.IF.A.2

Front

How do you find x such that f(x) = 2 for the function f(x) = 4x + 2?

Back

Set 4x + 2 = 2 and solve for x, which gives x = 0.

Tags

CCSS.HSF.IF.A.2

Front

What is the value of f(6) for the function f(x) = 3x - 8?

Back

f(6) = 3(6) - 8 = 18 - 8 = 10.

Tags

CCSS.HSF.IF.A.2

Front

How do you substitute a value into a function?

Back

Replace the variable in the function with the given value and simplify.

Tags

CCSS.HSF.IF.A.2

Front

What does f(x) represent in a function?

Back

f(x) represents the output of the function for a given input x.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

How do you read f(x)?

Back

It is read as 'f of x'.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the general form of a linear function?

Back

A linear function is generally expressed as f(x) = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Front

What is the slope in the function f(x) = 2x + 1?

Back

The slope is 2.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept in the function f(x) = 2x + 1?

Back

The y-intercept is 1.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you evaluate a function at a specific point?

Back

Substitute the specific point into the function and simplify to find the output.

Tags

CCSS.HSF.IF.A.2