Pattern rule
Write the pattern rule for:
3,7,11,15,19
Start at 3, add 4 each time.
X: 1 2 3 4 5
Y: 12 24 36 48 60
nx12
The pattern goes up by 6 each time.
Recursive
X: 1 2 3 4 5
Y: 3 6 n 12 15
n = 9
A slice of pizza costs 2$ at school. Write an expression to show the cost per slice.
p x 2
Write the pattern rule for:
12,10,8,6,4
Start at 12, subtract 2 each time
X: 1 2 3 4 5
Y: 6 7 8 9 10
n + 5
The term number is multiplied by 4 then 1 is added each time.
Functional
X: 1 2 3 4 8
Y: 12 24 36 48 n
n = 96
An amusement park costs $15 to enter and $3 for each ride ticket. Write an expression to represent the cost of going to the park.
3t + 15
($3 per ticket) + ($15 to enter)
Write the pattern rule for:
-23,-20,-17,-14,-11
Start at -23, add 3 each time.
X: 1 3 5 7 9
Y: -3 -1 1 3 5
n - 4
What is the recursive relationship:
X: 1 2 3 4 5
Y: 6 7 8 9 10
Add 1 each time
X: 1 2 3 4 12
Y: -2 -4 -6 -8 n
n = -24
If it costs $6 for an ice cream sundae and 0.25 cents for each topping. How much will it cost for a sundae with 5 toppings?
$7.25
6 + (5x0.25) = 6 + (1.25) = 7.25
Write the pattern rule for:
-64,-72,-80,-88,-96
Start at -64, subtract 8 each time.
X: 1 2 3 4 5
Y: 16 24 32 40 48
n x 8 + 8
What is the functional relationship:
X: 1 2 3 4 5
Y: 6 7 8 9 10
The term number plus 5 each time.
X: 1 2 3 4 9
Y: -32 -22 -12 -2 n
DAILY DOUBLE!!
(X x 10 - 42)
n = 48
If Cutty started with $100 and saved $20 each week and Preston started at $200 and saved $10 each week, who would have the most money after 8 weeks and by how much.
Preston by only $20.
Write the pattern rule for:
16, -32, 64, -128, 256
DAILY DOUBLE!!
Start at 16, multiply by -2 each time.
X: 1 2 3 4 5
Y: 6 2 -2 -6 -10
n x (-4) + 10
What is the functional relationship:
X: 1 2 3 4 5
Y: 18 25 32 39 46
Term number multiplied by 7 plus 11.
X: 1 2 3 4 11
Y: 13 11 9 7 n
X x (-2) + 15
n = -7
If Mr. Wendenberg's chess club has the expression y= 2x + 10 to represent his club members and Mr. Van Rees' anime club has the expression y= 3x + 5.
Who's club has the higher rate of change, and by how much?
How many members will each teacher have after 9 weeks?
What week will Mr. VR pass Mr. Wendenberg in club members.
1. Mr. VR has higher rate of change.
2. a Mr. Wendenberg = 28
2. b Mr. Vr = 32
3. Week 6