1. **State the problem:** We are given two linear equations:
$$y = \frac{7}{2}x - 3$$
and
$$y = -\frac{3}{2}x + 7$$
We want to analyze these lines, find their intersection point, and understand their behavior.
2. **Formula and rules:** To find the intersection of two lines, set their right-hand sides equal because at the intersection point, both $y$ values are the same:
$$\frac{7}{2}x - 3 = -\frac{3}{2}x + 7$$
3. **Solve for $x$:**
Add $\frac{3}{2}x$ to both sides:
$$\frac{7}{2}x + \frac{3}{2}x - 3 = 7$$
Combine like terms:
$$\left(\frac{7}{2} + \frac{3}{2}\right)x - 3 = 7$$
$$\frac{10}{2}x - 3 = 7$$
$$5x - 3 = 7$$
Add 3 to both sides:
$$5x - \cancel{3} + \cancel{3} = 7 + 3$$
$$5x = 10$$
Divide both sides by 5:
$$\frac{\cancel{5}x}{\cancel{5}} = \frac{10}{5}$$
$$x = 2$$
4. **Find $y$ coordinate:** Substitute $x=2$ into one of the original equations, for example:
$$y = \frac{7}{2} \times 2 - 3 = 7 - 3 = 4$$
5. **Interpretation:** The two lines intersect at the point $(2,4)$.
6. **Summary:**
- The first line has slope $\frac{7}{2}$ and y-intercept $-3$.
- The second line has slope $-\frac{3}{2}$ and y-intercept $7$.
- They intersect at $(2,4)$.
This means the lines cross at this point on the coordinate plane.
Line Intersection 29Ba09
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