QuestionFind functions for average yearly earnings based on these points: Men (0,21), (30,66) and Women (0,20), (30,45).
(a) Determine $M(x)=m x+b$ for men.
(b) Determine $W(x)=m x+b$ for women.

Studdy Solution
Now we can write the function for women. Substitute the slope and y-intercept into the function form $W(x)=m x+b$.
$$W(x) =0.8333x +20$$The functions that model the average yearly earnings for men and women $x$ years after age21 are $M(x) =.5x +21$ and $W(x) =0.8333x +20$ respectively.