Question 34428
SEE THE FOLLOWING EXAMPLE AND TRY
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For the systems of linear equations in this question
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
y = 2x + 3 and y = -x - 4
-X-4=2X+3
2X+X=-4-3=-7
3X=-7
X=-7/3
Y=-(-7/3)-4=7/3-4=(7-12)/3=-5/3
HENCE THERE IS ONE UNIQUE SOLUTION.
{{{ graph( 600, 600, -10, 10, -10, 10, -x-4, 2*x+3) }}}