Answers to Exercise 2.3 in slope-intercept form

below the fold...

2.3a)
$$y = \frac{1}{3}x +\frac{4}{3}$$

2.3b)
$$y = -\frac{3}{2}x +7$$

2.3c)
$$y = -\frac{1}{2}x -\frac{1}{2}$$

In case the math notation does not display correctly, I've also posted these over on Piazza.