5. Select the expression that is equivalent to: V + V + V + V.

B. 4V

Step-by-step explanation: You multiply the Vs by 4 due to how many there are.

4V

Step-by-step explanation:

If you put x+x+x+x into a calculator, then you get a line that is equivalent to 4x. Other than that, I can't really explain that any more.

Hope that this helps!

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

(x+3)(x+7)

step-by-step explanation: