Question

calculate the slope with linear relationship
x, y
2, 2
6, 14
10, 26

Answer 1

Slope = (Δy)/(Δx). Using (2,2) and (6,14): (14−2)/(6−2) = 12/4 = 3.
Check with (6,14) and (10,26): (26−14)/(10−6) = 12/4 = 3.

So the slope is 3. The line is y = 3x − 4.