Find f(–2) for the function f(x) = 3x2 – 2x + 7. −13 −1 1 23

Step-by-step explanation:

The correct option is 4. The value of f(-2) is 23.

Step-by-step explanation:

The given function is

We have to find the value of f(-2). It means we need to find the value of function f(x) at x=-2.

Substitute x=-2 in the given function to find the value of f(-2).

On simplification we get

The value of f(-2) is 23. Therefore the correct option is 4.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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