Question

Copy and complete the table of values for y = x³ + 4x. What numbers replace A and B?

x -2 -1 0 1 2
y -16 A 0 5 B​

Answer 1

The complete table is:

x -2 -1 0 1 2

y -16 -5 0 5 16

Where: A = -5 and B = 16

What is the output value of the polynomial function?

The polynomial function is given as:

y = x³ + 4x

Thus:

When x = -1, we have:

y = (-1)³ + 4(-1)

y = -5

When x = 2, we have:

y = 2³ + 4(2)

y = 16

Thus, the complete table is:

x -2 -1 0 1 2

y -16 -5 0 5 16