A company purchases office furniture for $9,500 in 2009. In 2019, the company moves to a new location, and they need to sell the
furniture. The value of the furniture decreases over time, as shown in the graph below, where the y-axis represents the value of the furniture, in dollars, and the x-axis represents the number of years since 2009.
The initial value of the furniture is $ .
The percent decrease per year of the value of the furniture is %.
The interval on which the value of the furniture is decreasing while the company owns it is [ , ].
The initial value of the furniture is $ .
The percent decrease per year of the value of the furniture is %.
The interval on which the value of the furniture is decreasing while the company owns it is [ , ].
2 answers:
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Let's assume
boiling point is y
altitude is x
we are given
This relationship between altitude and boiling point is linear
At an altitude of 1000 feet, water boils at 210°F
so, first point is (1000,210)
so, x1=1000 , y1=210
At an altitude of 3000 feet, water boils at 206°F
so, second point is (3000,206)
so, x2=3000,y2=206
now, we can find slope
now, we can plug values
now, we can use point slope form of line
so, we can plug it
so, point slope form of line is
now, we can plug x=8000
and then we can solve for y
So,
the boiling point of water at an altitude of 8000 feet is 196°F..........Answer