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Margaret [11]
3 years ago
13

The table gives the boiling point of water at different altitudes.

Mathematics
2 answers:
vlabodo [156]3 years ago
3 0
We will use the points (2 , 208.4) and (1 , 210.2) to find the slope of the line.

m = (210.2 - 208.4) / (1 - 2)
m = -1.8

The boiling point of water decreases by 1.8 °F for every 1000-foot increase in altitude.
barxatty [35]3 years ago
3 0

Answer:

1.8

Step-by-step explanation:

Altitude (1,000 feet)      Boiling Point of Water (°F)

0                                          212.0

0.5                                       211.1

1.0                                       210.2

2.0                                       208.4

2.5                                       207.5

3.0                                       206.6

4.0                                       204.8

4.5                                       203.9

Formula of slope m = \frac{y_2-y_1}{x_2-x_1}

(x_1,y_1)=(0,212)

(x_2,y_2)=(0.5,211.1)

Substituting the values in the formula

m=\frac{211.1-212}{0.5-0}

m=\frac{-0.9}{0.5}

m= -1.8

Hence  the linear equation that represents the change in water’s boiling point for every 1,000-foot change in altitude has a slope of 1.8 units.

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