A rectangular yard is 18 feet long. The area if the yard is 400.5 square ft. What is the width of the yard?
1 answer:
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Answer:
7.5
Step-by-step explanation:
the slope m is a measure of the rate of change
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (6, 45 ) and (x₂, y₂ ) = (9, 67.5 )
m = =
= 7.5 ← rate of change