Answer:
15/-14
Explanation:
Attached is a picture of slope formula when you are given two points.
1) Plug points into slope formula:
(18-3)/(-18+4)
2) Simplify:
15/-14
Footnotes:
1) Refer to the image if you are unsure of how to plug in the points
2) On the denominator in step 1, I simplified two subtraction signs to a plus