1. The problem is to find linear equations that pass through the points where the stars are located: (2,8), (2,4), (8,7), and (14,4).
2. Recall that a linear equation in two variables $x$ and $y$ can be written as $y = mx + b$, where $m$ is the slope and $b$ is the y-intercept.
3. First, observe the points (2,8) and (2,4). Both have the same $x$-coordinate, so the line passing through them is vertical: $x = 2$.
4. Next, consider the points (2,4) and (14,4). Both have the same $y$-coordinate, so the line passing through them is horizontal: $y = 4$.
5. Now, find the equation of the line passing through (2,8) and (8,7). Calculate the slope:
$$m = \frac{7 - 8}{8 - 2} = \frac{-1}{6} = -\frac{1}{6}$$
6. Use point-slope form with point (2,8):
$$y - 8 = -\frac{1}{6}(x - 2)$$
7. Simplify:
$$y - 8 = -\frac{1}{6}x + \frac{2}{6}$$
$$y = -\frac{1}{6}x + \frac{1}{3} + 8$$
$$y = -\frac{1}{6}x + \frac{25}{3}$$
8. Finally, find the equation of the line passing through (8,7) and (14,4). Calculate the slope:
$$m = \frac{4 - 7}{14 - 8} = \frac{-3}{6} = -\frac{1}{2}$$
9. Use point-slope form with point (8,7):
$$y - 7 = -\frac{1}{2}(x - 8)$$
10. Simplify:
$$y - 7 = -\frac{1}{2}x + 4$$
$$y = -\frac{1}{2}x + 11$$
Summary of linear equations that collect all stars:
- $x = 2$
- $y = 4$
- $y = -\frac{1}{6}x + \frac{25}{3}$
- $y = -\frac{1}{2}x + 11$
Linear Equations Stars B00C81
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