Linear Equations - Pool capacity - Graphing

Algebra
Tutor: None Selected Time limit: 1 Day

1) Is 6x-xy=4 a linear equation? Why?

2) Pool  capacity is 10,080 gallons which drains at 720 gallons per hour. At how many hours, will it be completely drained?

3) Graph 2x+4y=16 using x and y intercepts,

Nov 22nd, 2014

6x-xy 4 is not a linear equation since xy term is involved. (this is of second degree; one for x and one for y)

2) 10080/720 = 1008/72 = 252/18 = 126/9 =42/3 =14

After 14 hours, it will be completely draines

By putting y=0

x intercept = 16/2 =8 ; 

By putting x=0

y intercept =16/4 =4l

inear_nov22.xlsx 

Nov 22nd, 2014

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