trexchomp74847 trexchomp74847
  • 15-12-2021
  • Mathematics
contestada

equations : 2x + y = -4
-3y = 2x + 12​

equations 2x y 4 3y 2x 12 class=

Respuesta :

reinhard10158
reinhard10158 reinhard10158
  • 20-12-2021

Step-by-step explanation:

2x + y = -4

-3y = 2x + 12

convert to regular line equations, when we have only y on one side :

y = -2x - 4

y = -2/3 x - 12/3 = -2/3 x - 4

remember, the general line equation is

y = ax + b

a is the slope (y coordinate change / x coordinate change). and b is the y-intercept (the y value when x = 0).

that means, both lines have the same y-intercept : y = -4

and that means only F is the right representation of the 2 lines.

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