Domain and Range of Linear Functions

What is the Domain of this Function?

• All Real Numbers Greater Than -9 and Less Than -9

• -2 and 3

• All Real Numbers

• All Real Numbers Greater Than -8 and Less Than 4

Answer explanation

Any Linear function without restrictions (two arrows) has a domain of all real numbers

What is the Domain of this Function?

• All Real Numbers Less Than 7

• All Real Numbers Greater Than 7

• All Real Numbers Greater Than 3

• All Real Numbers Greater Than or Equal to 7

Answer explanation

Open Circle! No equal sign for that value of x (7) in the domain.

What is the domain of this Function?

• All Real Numbers Greater Than or equal to -3 and less than to 3

• All Real Numbers Greater Than to -3 and Less Than or Equal to 3

• All Real Numbers Greater Than -2 and less than or Equal to 4

• All Real Numbers Greater Than or equal to -2 and Less Than 4

Answer explanation

Open Circle - Not Equal to

Closed Circle - Equal to

What is the Domain of this Function?

• All Real Numbers

• { 1, 2, 3, 4, 5 }

• { 6, 12, 18, 24, 30 }

• Tomato

Answer explanation

It was not tomato >:v

What is the Range of this Function?

• 0 ≤ y ≤ 10

• 193 ≤ x ≤ 250

• 0 ≤ x ≤ 10

• 193 ≤ y ≤ 250

Answer explanation

Range is for the values of y! Do not get tricked! :(

What is the Range of this Linear Function?

• 1 < y < 2

• 1 < x 2

Answer explanation

Range is for the y!

Arrows go to positive infinity and negative infinity!

What is the Domain of this set of ordered pairs?

• All Real Numbers

• {-2, 1, 4, 7}

• {-1, 0, 2, 7}

• {-1,-2,0,1,2,4,7}

Answer explanation

Ordered Pairs are ( X , Y )

Domain is for the values of x!

What is the Range of this Function?

• 0 ≤ x ≤ 9

• 0 ≤ y ≤ 9

• 0 ≤ x ≤ 28

• 0 ≤ y ≤ 28

What is the Domain and Range of this function?

• -7 ≤ x ≤ 6

• -7 ≤ y ≤ 6

• -4 ≤ x ≤ 5

• -4 ≤ y ≤ 5

Answer explanation

Domain is for x!

Range is for y!

What is the Range of this Function?

• All Real Numbers

• { -3, 2, 5, 11}

• {-130, 0, 78, 234}

• { 1, 2, 3, 4, 5}

Answer explanation

Range is y! y and f(x) are the same!