adhamnaser210
adhamnaser210 adhamnaser210
  • 20-01-2021
  • Mathematics
contestada

23- The equation of straight line whose slope 2 and a pass through (1,-1)​

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nermay7
nermay7 nermay7
  • 20-01-2021

Answer:  The equation is y = 2x  -3

Step-by-step explanation:

Use the slope intercept formula (y=mx+b)  and input the slope plus the x and y coordinate to solve for b(the y(the intercept) and write the equation.

y = mx + b    m is the slope and be again is the y intercept.

-1 = 2(1) + b

-1 = 2 + b

-2    -2

 b = -3  

Therefore the equation is,   y = 2x  -3

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