SOLUTION: 4. The line y=0.15x + 0.79
represents an estimate of the average cost of gasoline for each year. The line
0.11x - y= -0.85
estimates the price of gasoline in Januar
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Question 136991: 4. The line y=0.15x + 0.79
represents an estimate of the average cost of gasoline for each year. The line
0.11x - y= -0.85
estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006).
a) Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning.
b) Use the equations of the lines to determine if they are parallel. What did you find?
c) Did your answer to part b confirm your expectation in part a?
Can someone please help me with these questions...
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The line y=0.15x + 0.79 represents an estimate of the average cost of gasoline for each year.
The line 0.11x - y= -0.85 estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006).
-----------------------------
y = 0.15x + 0.79
y = 0.11x + 0.85
--------------------------------
a) Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning.
The slopes are different so the lines intersect.
--------------------------------------------
b) Use the equations of the lines to determine if they are parallel. What did you find?
They are not; they intersect.
----------------------------
c) Did your answer to part b confirm your expectation in part a?
Yes
--------------------------
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Cheers,
Stan H.
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