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Sagot :
Using a linear function, it is found that they will have 405 MB of free space when they first have the same amount of space left.
What is a linear function?
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
The free space for each of Nereo and Azeneth can be modeled by a linear function, in which the slope is negative with the amount that each second of video takes and the y-intercept is the initial free space. Her the functions for the amount of free space after x seconds are given by:
- N(x) = 1000 - 7x.
- A(x) = 1255 - 10x.
They will have the same amount of free space when:
N(x) = A(x)
1000 - 7x = 1255 - 10x
3x = 255
x = 255/3
x = 85.
The space will be of:
N(85) = 1000 - 7 x 85 = 405 MB.
More can be learned about linear functions at https://brainly.com/question/24808124
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