Question

Complete the table from left to right for the following function.

Answer 1

The correct choice is A.

Explanation:

You plug in the values of x into the function and work out value of y:-

x=0, y = 1/2(0 - 8) = -4

x = 1, y = 1/2(1 - 8) = -3.5

To work out the x values substitute for y:-

when y = -2 ,

-2 = 1/2(x-8)

-2 = 1/2x - 4

1/2x = -2 + 4

x = ( -2 + 4) / 1/2

= 2 / 1/2

= 4

when y = -8,

-8 = 1/2 (x - 8)

-8 = 1/2 x - 4

1/2x = -4

x = -8