Question

The points (-1, -3) and (2, r) lie on a line with slope 3. Find the missing coordinate r

Answer 1

Answer:

6

Step-by-step explanation:

y+3/2+1= y+3/3

what can be divided by 3 to then equal 3? 9

9-3+6

6+3/2+1=9/3

9/3=3