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Neko [114]
3 years ago
14

Given the equations of two lines. Determine if the lines are parallel, perpendicular or neither y=1/2x+7 and y= 2x + 3

Mathematics
2 answers:
DanielleElmas [232]3 years ago
6 0

y=1/2x+7   slope = 1/2


y= 2x + 3  slope = 2


for the lines to be parallel the slopes have to be the same

for the lines to be perpendicular the lines have to be negative reciprocals (1/2 * 2) = -1  they are not

Answer:

they are neither

marysya [2.9K]3 years ago
5 0
I believe this would be neither
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const2013 [10]
X of 20% = y
x - y = 75

x = total amount
y = discounted amount

x * 20/100 = y
x * 0.2 = y
replace y with 0.2x in other equation

x - y = 75
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Check:
93.75 * 20/100 = 18.75
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//BTW not sure about this, but kind of make sense

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</span>
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