The equation for the future value of a deposit earning compound interest is equation ,
p = the initial deposit
t = years invested
r = rate at which interest is compounded annually
n = number of times the interest is compounded per year
after 10 years, a $2,000-dollar investment compounded annually has grown to $3600. what is the
interest rate to the nearest whole-number percent?

P=2000

t=10

r=?

n=1

3600=2000(1+r/1)^(1*10)

r=0.06

r=6%

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)