Write an equation that models the points (-1,4) and (3,2)

Step-by-step explanation:

y=mx+b

m=(y2-y1)/((x2-x1)=(2-4)/(3- -1)=-2/4=-.5

y=-.5(3)+b, using point (3,2)

2=-1.5+b

b=3.5

y= -.5x+3.5

First, we calculate for the effective interest rate.
                            ieff = (1 + 0.039/4)^4 - 1
                            ieff = 0.039574

then, the future worth of current amount is equal to,
                                      f = p x (1 + ieff)^n
where p is the current money and n is the number of years.
                                      f = ($500) x (1 + 0.039574)^5
                                                f = $607.08