Question

Use the cubic model y = 6x3 - 5x2 + 4x – 3 to estimate the value of y when x = 2.

Answer 1

Answer:

The answer is B.

Step-by-step explanation:

You have to substitute x = 2, into the equation of y :

$y = 6 {x}^{3} - 5 {x}^{2} + 4x - 3$

$let \: x = 2$

$y = 6 {( 2)}^{3} - 5 {(2)}^{2} + 4(2) - 3$

$y = 48 - 20 + 8 - 3$

$y = 33$

Answer 2

Yeah it 33 is correct