Samantha spends $120 per month on lottery scratchers. Instead of buying lottery scratchers, she decides to invest that amount each month in a savings account with an
annual interest rate of 6.7% compounded monthly.
How much money would Samantha have in the savings account after 45 years?

Answer is in the file below

tinyurl.com/wpazsebu

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

answer:     true

step-by-step explanation: