Question

Solve the system of equations by graphin
y = 2x + 3
y = – 5x – 4
Use the graphing tool to graph the system

Answer 1

Answer:

(-1, 1)

Step-by-step explanation:

okay so you're basically trying to find the coordinates of when 2x + 3 = -5x - 4

so you just gotta solve that first

2x + 3 = -5x - 4

+5x        +5x

7x + 3 = -4

      -3    -3

7x = -7

/7     /7

x = -1

then you gotta plug in the x or -1

y = 2(-1) + 3

y = -2 + 3

y = 1

and

y = -5(-1) - 4

y = 5 - 4

y = 1

so regardless of which equation you choose, y = 1

so that means the solution is (-1, 1)