Question

Use the quadratic function to predict y if x equals 6. y = 2x2 − 2x − 2

Answer 1

Answer:

The value of the polynomial $y = 2x^2 - 2x - 2$  is 58 for x = 6.

Step-by-step explanation:

Here, the given quadratic function polynomial is given as:

$y = 2x^2 - 2x - 2$

or, $y(x) = 2(x^2 - x - 1)$

Now, to find the value of y, when x = 6

⇒ $y(6) = 2((6)^2 - (6) - 1)$

                  = 2(36 - 6 -1)  = 2(29)  

                  = 58

⇒y(6)  = 58

Hence, the value of the given polynomial $y = 2x^2 - 2x - 2$  is 58 for x = 6.