Graph the two equations to solve the system. What is the solution?
3x - 2y = 6 and 5x + 3y = -9

(4, 3)
(5, 4.5)
(0, -3)
infinitely many solutions

Question

Graph the two equations to solve the system. What is the solution?
3x - 2y = 6 and 5x + 3y = -9

      (4, 3)
      (5, 4.5)
      (0, -3)
      infinitely many solutions

mertsj · Answer

Why don't you plug these points in and see if one of them makes both sentences true?

anonymous · Answer

can u show me

mertsj · Answer

$$3x-2y = 6  and  5x+3y=-9$$

anonymous · Answer

(0,-3)

mertsj · Answer

Oh well, now Kija wants to help you.  Perhaps she will show you how to substitute the points.

anonymous · Answer

yes I will

anonymous · Answer

Graph the two equations to solve the system. What is the solution?
x + y = -8 and x - y = 8 
      (0, -8)
      (-12, 4)
      (-4, -4)
      no solution

anonymous · Answer

with this can u show me step by step how to do it

anonymous · Answer

Yea sure

anonymous · Answer

Okay so lets start with the first choice: (0,-8)

Substitute it in:

0 -8 = -8 and 0 +8 = 8 


Does it work?

anonymous · Answer

it cancels everything out right

anonymous · Answer

Right so we have our answer right there we don't even have to figure out the rest of them.

anonymous · Answer

oh i see thank you i understand

anonymous · Answer

np :)