A six-pack of soda is on sale for $2.46. Find the cost of one can of soda.
1 answer:
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Equation
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Rearrange the equation
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slope of the perpendicular line
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slope = 2
(*the slope of the perpendicular line is the <span>negative reciprocal of the slope of line)</span>
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Substitute slope into equation y = mx + c
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y = 2x + c
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Find y-intercept
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y = 2x + c
At point (0, 4)
4 = 2(0) + c
c = 4
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Substitute y-intercept into the equation y = 2x + c
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y = 2x + 4
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Answer: y = 2x + 4
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Equation
--------------------------------------------------------------------------
--------------------------------------------------------------------------
Rearrange the equation
--------------------------------------------------------------------------
--------------------------------------------------------------------------
slope of the perpendicular line
--------------------------------------------------------------------------
slope = 2
(*the slope of the perpendicular line is the <span>negative reciprocal of the slope of line)</span>
---------------------------------------------------------------------------
Substitute slope into equation y = mx + c
---------------------------------------------------------------------------
y = 2x + c
---------------------------------------------------------------------------
Find y-intercept
---------------------------------------------------------------------------
y = 2x + c
At point (0, 4)
4 = 2(0) + c
c = 4
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Substitute y-intercept into the equation y = 2x + c
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y = 2x + 4
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Answer: y = 2x + 4
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