SOLUTION: lf a line of slope 0.2 crosses the origin of x-y coordinate system and a point(x, 20) , find x (A) 100 (B) 10 (c) 4 ( D ) 0.1 (E) 0.01

Algebra ->  Linear-equations -> SOLUTION: lf a line of slope 0.2 crosses the origin of x-y coordinate system and a point(x, 20) , find x (A) 100 (B) 10 (c) 4 ( D ) 0.1 (E) 0.01       Log On


   

Question 270695: lf a line of slope 0.2 crosses the origin of x-y coordinate system and a point(x, 20) , find x

(A) 100 (B) 10 (c) 4 ( D ) 0.1 (E) 0.01
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
lf a line of slope 0.2 crosses the origin of x-y coordinate system and a point(x, 20) , find x
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Draw the picture and you will see you have two points (0,0) and (x,20)
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slope = (20-0)/(x-0) = 20/x
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Equation:
20/x = 0.2
Invert:
x/20 = 10/2
x/20 = 5
x = 100
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Cheers,
Stan H.