The problem asks us to solve the system of equations $y = -x + 3$ $x + y = -\frac{5}{2}$ by graphing. We need to find the point of intersection of the two lines.
2025/3/17
1. Problem Description
The problem asks us to solve the system of equations
by graphing. We need to find the point of intersection of the two lines.
2. Solution Steps
First, we have the equation . This is a linear equation in slope-intercept form, where the slope is and the y-intercept is . We can also find the x-intercept by setting which gives , or . So, we have two points (0, 3) and (3, 0).
Next, let's rewrite the second equation in slope-intercept form:
This is a linear equation in slope-intercept form, where the slope is and the y-intercept is . We can find the x-intercept by setting which gives . So we have two points (0, -2.5) and (-2.5, 0).
Now we have the two lines. To find the intersection point, we can set the two equations equal to each other:
This is impossible, therefore, the two lines are parallel and there is no solution.
Alternatively, we can solve the system algebraically.
Substitute the first equation into the second:
This is a contradiction, indicating that the system has no solution. This confirms the lines are parallel.
3. Final Answer
No solution