Plz asap! brainiest if you answer all the questions and 50points!
1.8v2+8v-48
2. 6y2-24y+18
3.9r2-36r-25
4.8m2+30m+7
5.10w2-31w+15

What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1

Match each function with its rate of growth or decay

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?