1. Objective- To write linear equations to describe
situations and solve problems.
Snowflake Problem
Instance:
Number
of Chips: I C
Let I = Instance or Design #.
Let C = Number of Chips Used. 6 6
C is dependent on I 6
C = ___I + ___ 6 1 6

2. Objective- To write linear equations to describe
situations and solve problems.
Snowflake Problem
Instance:
Number
of Chips: I C
Let I = Instance or Design #.
Let C = Number of Chips Used. 6 6
C is dependent on I
Change
Start Value 6
C = I + 6 1 6

3. Objective- To write linear equations to describe
situations and solve problems.
Instance:
Snowflake Problem
Number
of Chips: I C
Let I = Instance or Design #.
Let C = Number of Chips Used. 6 6
C is dependent on I
Change
Start Value 6
C = I + 6 1 6

4. $1.65 + 0.25 = $ 1.90 Let p = price of salad p = 0.25 w + 0.40
This chart shows the price
of salad at a local market.
1) How much would a
6 oz salad cost?
$ = $ 1.90
0.25
0.25
2) Write an equation for
the cost of a salad that
weighs w oz.
0.25
0.25
Let p = price of salad
3) How much would a 10 oz
salad cost?
p = w +
0.40
p = 0.25 w
Change
Start
Value
p = 0.25 ( 10 )
p = = $2.90

5. A taxi cab charges a flat rate of $2.50 and 15 c
per mile. Write a linear equation for the charge
in terms of the number of miles driven.
Let C = charge in dollars
Let m = # of miles driven
C = m
Start
Value
Change

6. A phone company charges $17.50 for the first
30 minutes of toll charges and 12 c for each
additional minute . Write a linear equation for
the charge in terms of the number of minutes.
Let C = charge in dollars
Let m = # of minutes m C
C = m
Start
Value
Change
C = (m- 30)
for m > 30

7. Read Example 4, p. 190
in your textbook.