Question

The table represents a linear function.

A two column table with six rows. The first row, x, has the entries negative 4, negative 2, negative 1, 1, 2. The second column, y, has the entries, negative 2, negative 10, negative 14, negative 22, negative 26.
What is the slope of the function?

–8
–4
2
5

Answer 1

Slope = Δy/Δx. Between x = -4 and x = -2: Δy = -10 − (−2) = −8, Δx = −2 − (−4) = 2, so slope = −8/2 = −4.