f(x) means the function of x
so the function is the input is x and the output is f(x), read "f of x". The output f(x) is sometimes given an additional name y by y = f(x). The example that comes to mind is the square root function on your calculator.
I'm pretty sure the answer is A. hope that helped
Adding all vakus in data set and divide by the number of values in the data set
See the attached figure
we know that
[<span>the area of the trapezoid]=[area rectangle]+2*[area triangle]
</span>[the area of the trapezoid]=[14*12]+2*[12*2/2]=192 in²
the answer is 192 in²
4. The answer is -7 and 7. Start at 0 and count to the left. That’s -7. Then to the right it’s 7