Luis deposited $500 into his savings account with a simple interest rate of 3%. He wants to keep his deposit in the bank until he earns $120 in interest. For how many years does Luis need to keep his deposit in the bank?

6+6=12 so that just tells you what it is one half is 6 the next one is 6

if you are factoring then 4(x+3)

if you are simplifying 4x+12

step-by-step explanation:

let

step

find the slope of the line ab

we know that

the formula to calculate the slope between two points is equal to

substitute the values

step

find the equation of the line ab with the slope m and point a

we know that

the equation of the line in the slope-point form is equal to

substitute the values

convert to function form

let

therefore

the answer is the option

see the attached figure to better understand the problem