Question

Which of the following functions has the largest value when x = 3? c(x) = 3x2 + 5x + 22 j(x) = 12x a(x) = 9x

Answer 1

To determine the function which has the largest value at x=3,

We will calculate the value of each function by substituting the value of x=3 in each of the given function.

Let us consider the first function,

`c(x)=3x^(2)+5x+22`

`c(3)=3* 3^(2)+5 * 3+22`

`c(3)=27+15+22`

`c(3)=64`

Let us consider the second function,

`j(x)=12x`

`j(x)=12 * 3 =36`

Let us consider the third function,

`a(x)=9x`

`a(x)=9 * 3=27`

Therefore, the function c(x) has the largest value at x=3.