You can use the slope formula or just calculate [tex] \frac{rise}{run} [/tex] So for the first problem you run 3 units right and rise 5 units so [tex] \frac{rise}{run} = \frac{5}{3} [/tex] 2. Notice the y axis goes by 2 units. [tex] \frac{ - 10}{4} = \frac{ - 5}{4} [/tex] 3. [tex] \frac{0}{12} = 0[/tex] 4. [tex] \frac{2}{0} = undefined[/tex] Please let me know if you have questions