Relations
Is this Relation a Function?
(2,7), (6,5), (4,4), (3,3), (2,1)
No
Write a linear Function:
x: 1 2 3 4
y: 6 13 20 27
f(x)=6x
Is this an arithmetic sequence?
0, 5, 10, 15, 19
No
The cost of having one pizza delivered is $15. Each additional pizza costs $9 more.
Write the explicit Formula
an= 6+9n
Identify the Domain and Range of the relation:
x y
2 -1
8 9
20 9
30 16
46 -1
D: 2, 8, 20, 30, 46
R: -1, 9, 16
Write a linear Function:
X: 1 2 3 4
Y: 1 4 7 10
f(x)= 3x-2
Is this an arithmetic sequence?
2, 4, 6, 8, 10
Yes
The cost of having one pizza delivered is $15. Each additional pizza costs $9 more.
Write the recursive formula
an= an-1+9
a1=15
Is this relation a function?
(3,2), (-1,7), (-3,1), (0,9), ), (2,-4)
Yes
Write a linear Function:
X; 1 1.5 2 2.5 3
y:18 23 28 33 38
f(x)=10x+8
Make a scatter plot of the data. Draw a trend line and write its equation
x: 2 4 5 7 8 8
y: 3 6 5 7 9 8
It is positive or negative?
.8x + 1.8