Answer:
[tex] \frac{4}{5} [/tex]
Step-by-step explanation:
Use the slope formula:
[tex] \frac{y1 - y2}{x1 - x2} = m[/tex]
*Slope is rise over run, hence y (vertical) over x (horizontal)*
[tex] \frac{5 - 1}{4 + 1} = \frac{4}{5} [/tex]
Notice that the one in the denominator is positive. This is because the x value for point M is negative one and you're subtracting it from the four. When there are two negative like this, it turns into a positive (+).