SOLUTION: The line y=2.25x+1.79 represents an estimate of the average cost of gasoline each year. The line 0.11x-y=-0.85 estimates the price of gasoline in January of each year. Use the

Question 435221: The line y=2.25x+1.79 represents an estimate of the average cost of gasoline each year. The line 0.11x-y=-0.85 estimates the price of gasoline in January of each year.
Use the equations of the lines to determine if they are parallel, perpendicular or intersecting. Justify your answer.
Please help me I am completely lost.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The line y=2.25x+1.79 represents an estimate of the average cost of gasoline each year. The line 0.11x-y=-0.85 estimates the price of gasoline in January of each year.
Use the equations of the lines to determine if they are parallel, perpendicular or intersecting. Justify your answer.
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Put both equations into slope-intercept form.
y = 2.25x + 1.79
y = 0.22x + 0.85
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The slopes are different so the lines intersect.
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Cheers,
Stan H.
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