Question

Y=-4x-9. 7x+4y=-27. Solve each system of equations by graphing. Clearly identify your solution.

Answer 1

Remember that when solving a system of equations by graphing, the solution is the intersection point both graphs

we have

y=-4x-9 -------> equation A

7x+4y=-27 --------> equation B

using a graphing tool

see the attached figure

please wait a minute

the intersection point is (-1,-5)

therefore

the solution is

x=-1

y=-5