Question

Greg is a software salesman. His monthly salary is $1700 plus an additional $80 for every copy of Math is Fun he sells. Let S represent his total salary this month (in dollars), and let N represent the number of copies of Math id Fun he sells. Write an equation relating S and N, and then graph your equation using the axes below.

Answer 1

Let S represent his total salary, And N represent the number of math copies he sold.

ATQ,

$\boxed{ \sf1700 + 80n = s}$

His total salary will be the sum of his total salary and the total money he earned by selling the math copies.

Answer 2

Answer:

» Assume it is a direct proportionality:

${ \rm{N \: \alpha \: \: S}}$

» Fomulate the equation:

${ \rm{N = kS}}$

» When N is 1, S is $1700 + 80

${ \rm{1 = k(1700 + 80)}} \\ { \tt{k = \frac{1}{1780} }}$

» Equation becomes:

${ \rm{N = \frac{S}{1780} }} \\ \\ { \boxed{ \rm{ \red{ \:S = 1780N }}}}$

»