185
Ech
Northville High Sch.
Northville High Sch.
Northville High Sch..
40....
Mathematics, 03.12.2020 03:00 400516
185
Ech
Northville High Sch.
Northville High Sch.
Northville High Sch..
40. COMPARING FUNCTIONS Three siblings each
receive money for a holiday and then spend it at a
constant weekly rate. The graph describes Sibling A's
spending, the table describes Sibling B's spending,
and the equation y = -22.5x + 90 describes
Sibling C's spending. The variable y represents the
amount of money left after x weeks.
Spending
Money
Money left
(dollars)
80
60
40
20
$(2, 50)
(4, 20)
Week, Money
ั
left, y
1 $100
2 $75
3 $50
4 $25
0
0 1 2 3 4 5
Week
a. Which sibling received the most money?
the least money?
b. Which sibling spends money at the fastest rate?
the slowest rate?
c. Which sibling runs out of money first? last?
Row what you are din perustrades and lessons
hp
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