Question

The table shows ordered pairs of the function . What is the value of y when ?

A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 1, 1, 4, 8, 10. The second column is labeled y with entries 14, 10, 6, 0, question mark, negative 12.

–20
–8
8
48

Answer 1

-8

Reason: y decreases by 4 when x increases by 2, so slope = -2. Using y = -2x + b with (1,6) gives b = 8, so y = -2x + 8 and y(8) = -16 + 8 = -8.