Question

Thank you in advance

how do i solve or come up for things like this for example:
write an equation for the line that passes through (3,-6) and (8,9)

Answer 1

y=15/-5x+5 OR y=-3x+5

Explanation:

any answer works. the 2nd one is just the simplified version of the first one

Answer 2

rise/run 6/15 6/15 = 0.4

Explanation: