Choose the system of equations which matches the following graph:

a. 5x - y = 7
2x - y = 0

b. 5x - y = 7
2x + y = 0

c. 5x + y = -7
2x + y = 0

d. 5x + y = -7
2x - y = 0

Option B :  

Step-by-step explanation:

Intersecting point on the graph = (1,-2)

Substitute this point in the given options .

A.

Substitute (1,-2)

  and

and

So, this system of equations does not matches the graph.

B.

Substitute (1,-2)

  and

and

So, this system of equations matches the graph.

C.

Substitute (1,-2)

  and

and

So, this system of equations does not matches the graph.

D.

Substitute (1,-2)

  and

and

So, this system of equations does not matches the graph.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

h/o/e/s mad

step-by-step explanation:

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