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dsp73
3 years ago
11

consider the following equations: -x-y=1 y=x+3 if the two equations are graphed, at what point do the lines representing the two

equations intersect? (-1,2) (-2,1) (1,-2) (2,-1)
Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0

Answer:

(-2, 1)

Step-by-step explanation:

consider the following equations: -x-y=1 y=x+3

For the lines to intersect, the  values must be the same

-x-y=1

x + y = -1

y = -x - 1

Equating the y values

-x - 1 = x+ 3

-x-x = 3 + 1

-2x = 4

x = 4/-2

x = -2

Substitute x = -2 into y = x+3

y = -2 + 3

y = 1

Hence the required coordinate is (-2, 1)

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