When the coordinates (1,1) (7,3) and (2,-2) are joined, which shape is formed

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83