Question

Write the slope-intercept equation for the line through (3, 7) and (9, 3).

Answer 1

First get your slope with: \[m ={{y_{2} - y _{1} } \over {x_2 - x_1 }}\]

Then take any coordinate pair and use it in this formula:

\[y - y_1 = m(x - x_1)\]

you'll end up with:

\[y=mx + C\]

Answer 2

She just posted this twice. I provided a solution in the other one

Answer 3

Oh, mybad, didn't see the other one.