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26-05-2021
Mathematics

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solve the systems of equations shown in the graph below

solve the systems of equations shown in the graph below class=

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nouni2001 nouni2001

26-05-2021

The equation in red:
Slope = 5-(-3)/-1-1
Slope = 8/-2 = -4
The eq of the function is
y = -4x + 1

The equation in black:
Slope=4/4 = 1
The equation of the function is
y = x - 4

Solving the two equations:
Subtract 1 from 2
-4x +1 - x + 4 = 0
-5x = -5 so x = 1

Replacing in the second equation
y = 1 - 4 = -3

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