Unit 3 Relations and Functions Grade 8

A ___________ difference is the numerical difference, d, between any two consecutive terms.

Is the following sequence arithmetic? If do, find the common difference. 8, 6, 4, 2

• No

• D= -2

• D= 7

• D= -3

An ___________________________ is a sequence in which the difference between any two consecutive terms is a constant.

Write an equation to find the 19th term in the sentence.

7, 13, 19, 25

• 6(19-1)+7

• 6(19+1)+7

• 7(19-7)+6

• 7(18-7)+6

Is this a function?

• Yes

• No

• Uncertain

• Math is hard

F(x)=x+2

• -2

• 4

• 2

• -4

A ___________ difference is the numerical difference, d, between any two consecutive terms.

• R={-8, -1, 6}

• R={7, 8, 9}

• R=x2

• I don’t know

Find the Domain

• 
• A number

• 7

• D=x > 7