As an army recruiter, Ms. Cooper is paid a daily salary plus commission.
\She recruits and
peoples, she earns
and
.
a.
\Write a linear equation.
\The two ordered pairs represent the number of recruits and the salary are and
Find the slope.
.
(Formula for slope)
(Substitute
and
)
(Subtract:
and
)
(Simplify)
Therefore, the slope is .
Consider the ordered pair is ;
.
Point-slope form of the equation of a line is .
Write a linear equation.
\ (Formula for Point-slope of line equation)
(Substitute
and
)
(Distributive property:
)
(Add
to each side)
(Apply additive inverse property:
)
Therefore, the slope intercept form of the line equation is .
b.
\Find the Ms. Cooper daily salary.
\The -intercept of the equation
is
.
Thus, Ms. Cooper daily salary is .
c.
\Find how much would Ms. Cooper earn in a day she recruits people.
(Original equation)
(Substitute
)
(Multiply)
(Add:
)
Hence, Ms. Cooper will earn if she recruits
people.
a. The linear equation is .
b. Ms. Cooper daily salary is .
c. Ms. Cooper will earn she recruits
people.