Functions

Function Notation

100

y = 3n + 1

What is f(n) = 3n + 1?

200

b = a + 8

What is f(a) = a + 8?

300

y = x + 2

What is f(x) = x + 2?

400

c = t - 10

What is f(t) = t - 10?

500

t = 35 + r

What is f(r) = 35 + r?

Domain and Range Values

100

Find the range of y = (1/2)x + 3 when given a domain of {-4, -2, 0, 2}. 

What is range: {1, 2, 3, 4}?

200

Find the range when given f(x) = x² + 6x and a domain: {-3, -2, 0, 2}

What is the range: {-9, -8, 0, 16}?

300

Find the range values from these set of points: 

(4, 5), (4, 10), (8, 15), (8, 20)

What is range: {5, 10, 15, 20}?

400

Find the domain values from these set of points: 

(4, 5), (4, 10), (8, 15), (8, 20)

What is domain: {4, 8}? 

500

Find the range values when given f(x) = (2x + 4)/4 and a domain of {0, 2, 4}

What is range: {1, 2, 3}?

f(number)

100

f(input) = 

*Think of it as f(x) = *

What is an output or y?

200

Find the output for f(x) = 2x - 4 when f(-2). 

What is -8?

300

Find the domain when the range is {-6} for g(x) = x + 1

What is domain:{-7}?

400

Given a domain of {-3}, find the range for h(x) = 4x²

What is range:{36}?

500

Given a range of {0}, find the domain for f(x) = 3x - 12

What is domain:{4}?

Function or Not a Function?

100

On a graph, the equation passes this test to be considered as a function. 

What is the vertical line test?

200

If the x's repeat in a table or in coordinate points, the equation is considered this. 

What is not a function? 

300

The following points are considered as a function: 

f(1) = 0, f(2) = 5

What is yes?

400

The following points are considered as a function: 

(2, 3), (3, 4), (3, 5)

What is no? 

500

An equation can have the same x-value be mapped to multiple y-values to be considered this. 

What is not a function? 

Random

100

When writing the domain or range values, you write them in this order. 

What is least to greatest?

200

Domain, Input, X-axis, Independent

Range, Output, Y-axis, Dependent

What is DIXI ROYD?

300

When a negative number is squared, it then becomes this. 

What is a positive number?

400

Multiple x's can be mapped to the same y-value for an equation to be considered this. 

What is a function?

500

Find f(-4) for the function: f(x) = 2x² - 10

What is 22?