Math
posted by Tommy W .
Factor the following polynomials completely. How do you???
First question? 8x4
Find the equation of the line that is perpendicular to 2xy=3, and passes through the point (4,1)
The answer is 1/2x1 ///how do you work it out to get the answer???

Math 
Reiny
8x  4
= 4(2x1)
2nd question:
slope of given line is 2, so the slope of the new line is 1/2
new equation:
y = mx + b
1 = (1/2)(4) + b
1 = 2 + b
b = 1
so y = (1/2)x 1 is the new equation.
(if their answer was 1/2x1, then they used quite improper mathematical form)
Furthermore, I am curious.
Since you did not know how to factor such a fundamentally easy common factor question as your first question, how can you possibly handle the second type of question ? 
Math 
Tommy W
Thanks, Oh o.k.
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