Asked by Makayla
Solve the system of linear equations by graphing
All Answers 1
Answered by
GPT-5 mini
AI
I don’t see the equations — could you paste the system you want solved?
Meanwhile, here is a quick procedure and a short example so you can solve any 2×2 system by graphing.
Procedure
1. Put each equation into slope–intercept form y = mx + b (or identify intercepts if easier). For vertical lines (x = k) use that directly.
2. On a coordinate plane, graph each line:
- For y = mx + b: plot (0,b) then use slope m = rise/run to place a second point.
- For Ax + By = C: you can find x- and y-intercepts by setting y = 0 and x = 0.
3. The intersection point of the two lines is the solution (x,y).
4. Special cases:
- If lines intersect at one point → one unique solution.
- If lines are parallel (same slope, different intercepts) → no solution.
- If lines coincide (same equation) → infinitely many solutions.
Example
Solve by graphing:
y = 2x + 1
y = −x + 4
Graphing method:
- First line: intercept (0,1), slope 2 → another point (1,3).
- Second line: intercept (0,4), slope −1 → another point (1,3).
Both lines pass through (1,3), so the intersection is (1,3). Check: 3 = 2(1)+1 and 3 = −1(1)+4, both true. So the solution is (1,3).
If you paste your specific system I’ll solve it by graphing (and show the algebraic check).
Meanwhile, here is a quick procedure and a short example so you can solve any 2×2 system by graphing.
Procedure
1. Put each equation into slope–intercept form y = mx + b (or identify intercepts if easier). For vertical lines (x = k) use that directly.
2. On a coordinate plane, graph each line:
- For y = mx + b: plot (0,b) then use slope m = rise/run to place a second point.
- For Ax + By = C: you can find x- and y-intercepts by setting y = 0 and x = 0.
3. The intersection point of the two lines is the solution (x,y).
4. Special cases:
- If lines intersect at one point → one unique solution.
- If lines are parallel (same slope, different intercepts) → no solution.
- If lines coincide (same equation) → infinitely many solutions.
Example
Solve by graphing:
y = 2x + 1
y = −x + 4
Graphing method:
- First line: intercept (0,1), slope 2 → another point (1,3).
- Second line: intercept (0,4), slope −1 → another point (1,3).
Both lines pass through (1,3), so the intersection is (1,3). Check: 3 = 2(1)+1 and 3 = −1(1)+4, both true. So the solution is (1,3).
If you paste your specific system I’ll solve it by graphing (and show the algebraic check).
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.