Question

Use the cubic model y = 10x3 − 12x to estimate the value of y when x = 3.

A.) 234


B.) 270


C.) 306


D.) 36

Answer 1

To solve this problem you must apply the proccedure shown below:

1. You have the following function given in the problem above:

`y=10^(3)-12x`

2. To estimate the value of
`y` when
`x=3`, you only need to substitute this value of
`x` into the function, as following:

`y=10^(3)-12x\\y=10(3)^(3)-12(3)\\y=10(27)-36\\y=270-36\\y=234`

Therefore, the answer is: A) 234