SAT math
posted by Anonymous
In the xyplane, the line determined by (6,m) and (m,54) passes through the origin. Which of the following could be the value of m?
A) 2
B) 18
C) 36
D) 48
Is the answer B since if you plug it in, the answer is zero? Also if it is, how can you do this algebraically?

Henry
(0,0), (6,m), (m,54).
slope = m/6 = 54/m.
m/6 = 54/m,
m^2 = 324,
m = 18.
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