Question

Complete the table of values for y = x2 - 4x

Answer 1

-1 0 1 2 3 4 5

5 0 -3 -4 -3 0 5

Curve (B) best matches the given graph.

Explanation:

When given the following function,

`y=x^2-4x`

The problem asks one to evaluate the function for the given list of values, substitute in each of the values and solve to find the value of (y),

(-1)

`y=x^2-4x\\y=(-1)^2-4(-1)\\y=1+4\\y=5`

(1)

`y=x^2-4x\\=(1)^2-4(1)\\=1-4\\=-3`

(2)

`y=x^2-4x\\=(2)^2-4(2)\\=4-8\\=-4`

(4)

`y=x^2-4x\\=(4)^2-4(4)\\=16-16\\=0`