Question

Use the cubic model y=3x^3 to find the value of y when x=8

Answer 1

pemdas

exponent first

y=3(8³)
8³=512
y=3(512)
y=1536

the value is 1536

Answer 2

Value of y is 1536.

Explanation:

We have given an expression
`y=3x^3`

We need to find the value of y when x=8

We will substitute the value of x as 8 in the given expression we get

`y=3(8)^3`

On simplification we get

`y=3(512)`

On further simplification we get:

`y=1536`

Hence, the required value that is the value of y is 1536