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Publicado: 20 de noviembre de 2012
If a line passes by the points (3,-15)and (-2,5), determine:
The slope of the line.
m=-4
The equation of the line in the point-slope form, considering the point (-2,5).y-5=-4(x+2)
The equation of the line in the slope-intersection form.
y=-4x-3
The equation of the line in the general or ordinary form.
The intersection in y.
The intersection in x.The equation of the line in the intersection form.
A computer system has 10 years being in use and its current value is $23,000.00, but four years ago its value was $41,400.00. If the valueof the system is depreciated linearly with the time, determine:
The particular equation that matches the value of the system of the elapsed time.
V=-4600t+69,000
The commercialvalue of an automobile that has 8 years of use is $56,000, but 3 years ago it was $80,000. If such value varies linearly with the time, find:
The particular equation that expresses the value ofthe automobile in terms of time of use.
v=-8,000t+120,000
The value of the automobile when it has 12 years of use.
$24,000
The value of the car when it was new.$120,000
When does the automobile will not have commercial value?
15 years
Use the slope as a ratio of change to complete the following table
t(years) 0 1 2 3 4 5 6 7 8 9 10
valueTo 15000 feet over the level of the sea the water boils to 185 ℉, while to 18000 feet boils to 179.6 ℉. If the relation is between the boiling point of the water and the altitudeis linear, find:
The equation that expresses the boiling temperature of the water respect to the altitude.
The boiling temperature of the water at the level of the sea.
212 ℉
The boilingtemperature of the water to 12000 feet altitude over the level of the sea.
190.4 ℉
The altitude over the level of the sea, from which the waters boils at 90 ℃.
10,000 feet
The slope of the line.
m=-4
The equation of the line in the point-slope form, considering the point (-2,5).y-5=-4(x+2)
The equation of the line in the slope-intersection form.
y=-4x-3
The equation of the line in the general or ordinary form.
The intersection in y.
The intersection in x.The equation of the line in the intersection form.
A computer system has 10 years being in use and its current value is $23,000.00, but four years ago its value was $41,400.00. If the valueof the system is depreciated linearly with the time, determine:
The particular equation that matches the value of the system of the elapsed time.
V=-4600t+69,000
The commercialvalue of an automobile that has 8 years of use is $56,000, but 3 years ago it was $80,000. If such value varies linearly with the time, find:
The particular equation that expresses the value ofthe automobile in terms of time of use.
v=-8,000t+120,000
The value of the automobile when it has 12 years of use.
$24,000
The value of the car when it was new.$120,000
When does the automobile will not have commercial value?
15 years
Use the slope as a ratio of change to complete the following table
t(years) 0 1 2 3 4 5 6 7 8 9 10
valueTo 15000 feet over the level of the sea the water boils to 185 ℉, while to 18000 feet boils to 179.6 ℉. If the relation is between the boiling point of the water and the altitudeis linear, find:
The equation that expresses the boiling temperature of the water respect to the altitude.
The boiling temperature of the water at the level of the sea.
212 ℉
The boilingtemperature of the water to 12000 feet altitude over the level of the sea.
190.4 ℉
The altitude over the level of the sea, from which the waters boils at 90 ℃.
10,000 feet
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