Solve for w and l by using the system of equations.
2l=-2w+228
l=w+42
Substitute w+42 for l in the first equation.
2(w+42)=-2w+228
2w+84=-2w+228
4w=144
w=36
Now substitute 36 for w in any equation to get l=78.
To graph the equations, first make them equal l.
l=-w+114 and l=w+42 are your equations. You ca plug in values for w to plot points on the graph.
Ratio of amount of change to original shown as a percent.
Answer:
3rd option
Step-by-step explanation:
Given z is inversely proportional to (y - 2)² then the equation relating them is
z = 
← k is the constant of proportion
To find k use the condition when y = 5, z = 9 , then
9 = 
= 
= 
( multiply both sides by 9 )
81 = k
z = 
← equation of proportion
