Used DVDs are on sale for a price of 5 for $20. At that price, how much will is cost to buy 12 used DVDs?
2 answers:
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Answer:
slope = -
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 3, 4) and (x₂, y₂ ) = (4, - 1)
m = = -
The last answer is the correct one.
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