, if she does not sell any of English,x = The number of copies of English is Fun she sells
y = Total pay
[tex]y=1900+110x[/tex]
Therefore,
a.
Her change in total pay for each copy of English is fun can be computed below.
(0, 1900) (1, 2010)
[tex]m=\frac{2010-1900}{1-0}=110[/tex]
Her change in total pay for each copy of English is fun she sells = $110
b.
Her total pay if she does not sell any of English is fun is the y-intercept. Therefore,
[tex]\begin{gathered} y=1900+110x \\ y=1900+110(0) \\ y=\text{ \$1900} \end{gathered}[/tex]
Her total pay if she does not sell any of English is fun = $1900
Note you can model it to the slope-intercept equation.
[tex]\begin{gathered} y=mx+b \\ \text{where} \\ m=\text{change in total pay for each copy of English is fun she sells } \\ b=\text{Her total pay if she does not sell any of English is fun} \end{gathered}[/tex]
