Evaluating Functions

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input from a set of inputs.

Tags

CCSS.8.F.A.1

Front

What does it mean to evaluate a function?

Back

To evaluate a function means to calculate the output value for a given input.

Tags

CCSS.HSF.IF.A.2

Front

Evaluate y = x + 5 when x = 3.

Back

y = 8

Tags

CCSS.6.EE.A.2C

Front

Evaluate y = 7x when x = -5.

Back

y = -35

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the formula for a quadratic function?

Back

A quadratic function is generally expressed as f(x) = ax² + bx + c.

Front

Evaluate f(x) = 2x² + 5x - 17 for x = -1.

Back

f(-1) = -20

Tags

CCSS.HSF.IF.A.2

Front

What is the output of f(x) = 2x² + 5x - 17 when x = 0?

Back

f(0) = -17

Tags

CCSS.HSF.IF.A.2

Front

Evaluate the function for the given value: f(x) = 3x + 6 when x = 15.

Back

f(15) = 51

Tags

CCSS.HSF.IF.A.2

Front

What is the slope-intercept form of a linear function?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

Evaluate f(x) = x² - 4 for x = 2.

Back

f(2) = 0

Tags

CCSS.HSF.IF.A.2