Question

The table shows ordered pairs of the function y= 8 - 2x. What is the value of y when x= 8?

Answer 1

Answer:

The answer is -8 (Option B)

Step-by-step explanation:

You can solve this by replacing x in the equation with 8, because the question give us what x equals. So instead of y=8-2x, we get y=8-2(8)

Now that we have the complete equation, we can solve for y:

y= 8 - 2x

y= 8 - 2(8)

y= 8 - 16

y= -8

Answer 2

Answer: OPTION B.

Step-by-step explanation:

You know that the function is:

$y= 8 - 2x$

Then, in order to find the value of the variable "y" when the value of the variable "x" is 8 ($x=8$), you need to substitute this value into the function $y= 8 - 2x$.

Therefore, this is:

$y= 8 - 2x\\\\y= 8 - 2(8)\\\\y= 8 - 16\\\\y=-8$