A graphing calculator is a great help for problems of this nature.
x ∈ {-5.63, -0.55, 2.59}
C. For each hour he works, his earnings go up by $8.
Set equations for both containers:
Condition one: $y=2x$
Condition two: $(y-3)=4.5(x-2)$
plug in $y$ from condition one into the second equation:
$2x-3=4.5x-9$
simplify gives: $2.5x=6$
$\boxed{x=2.4}$
$\boxed{y=4.8}$
Answer:
b.)x+4
Step-by-step explanation:
-3+4=1
-2+4=2
-1+4=3
0+4=4