Respuesta :

Answer:

y=30x+1

Step-by-step explanation:

m= slope of line

slope=y2-y1/x2-x1

Take any two points

1200-300/40-10

900/30

30

Take any point and put y and x coordinates to find value of b

y=mx+b

1200=30x40+b

1200=1200+b

1200/1200=b

b=1

y=30x+1 (equation of line)

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