Find the slope for 3, 8 and 7, - 7

-3 3/4

Step-by-step explanation:

First, you make a table.

x | y

3 | 8

7 | - 7

Since in the table it shows that it goes up 4 x's for every - 15 y's, that means for every 1 x it goes down - 3.75 y's, so - 3.75 (-3 3/4) is the slope.