Question

Determine the x-coordinate that would yield a y-coordinate of 30, assuming the pair follows the same trend that currently exists in the data set below.
{(45, 18), (38, 21), (26, 31), (64, 13), (29, 28), (33, 25), (49, 17)}
A.
18
B.
27
C.
36
D.
38

Answer 1

calculate the trendline (trendline software would be your best bet. you could do this manually but it's very time-consuming and error-prone)
from there, plug in y = 30 into your trendline equation and solve for x.