A point (–2, 6) is rotated 270o around the origin. What are the coordinates of the new point?
1 answer:
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<em>Answer:</em>
<em>$0.38 per yard</em>
<em>Step-by-step explanation:</em>
<em>Step 1:</em>
Given; A 9-yard roll of string that costs $3.42.
Required; To find the unit price
<em> Step 2:</em>
Convert $3.42 to cents
<em>Step 3:</em>
<em>Find the unit price</em>
<em>Convert to dollars</em>
Hence the unit price is $0.38 per yard.
To find the slope of a line that goes through given points with known coordinates, you divide the subtraction of the y of the second point minus the y of the first point, by the subtraction of the x of the second point minus the x of the first point:
m = (yB-yA) / (xB-xA)
Let A(8,5) and B(6,7).
With yB = 7; yA = 5; xB = 6; xA = 8
m = (7-5) / (6-8)
m = 2/-2
m = -1
So the slope of the line that goes through the given points (8,5) and (6,7) is m = -1.
I've added a pic of the line with both points under the answer.
Hope this Helps! :)
m = (yB-yA) / (xB-xA)
Let A(8,5) and B(6,7).
With yB = 7; yA = 5; xB = 6; xA = 8
m = (7-5) / (6-8)
m = 2/-2
m = -1
So the slope of the line that goes through the given points (8,5) and (6,7) is m = -1.
I've added a pic of the line with both points under the answer.
Hope this Helps! :)