Respuesta :

Answer:

y=2x-3

Step-by-step explanation:

Since we know that the slope-intercept form is y=mx+b, we can plug in the formula with what we already know to find b!

In the coordinates (2,1):

  • 2 is the x
  • 1 is the y

Now, we will plug these numbers in:

1=2*2+b

1=4+b

b=-3

Now we can rewrite the equation since we found b:

y=2x-3

Hope this helped! :)