Question

A line includes the points (1,-5) and (-8, 4). What is its equation in slope Intercept form? ) Write your answer using integers, proper fractions, and improper fractions in simplest form. Х

Answer 1

We will use the two points formula for the equation of a line:

`y-4=(4-(-5))/(-8-1)(x-(-8))\text{.}`

Taking the above equation to its slope-intercept form we get:

`\begin{gathered} y-4=(9)/(-9)(x+8), \\ y=-x-8+4, \\ y=-x-4. \end{gathered}`

Answer:

`y=-x-4.`