Difference between revisions of "2017 AMC 10B Problems/Problem 10"

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==Solution==
 
==Solution==
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<math>\boxed{\textbf{(E)}\ 13}</math>
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==See Also==
 
==See Also==
 
{{AMC10 box|year=2017|ab=B|num-b=9|num-a=11}}
 
{{AMC10 box|year=2017|ab=B|num-b=9|num-a=11}}
 
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Revision as of 14:33, 16 February 2017

Problem

The lines with equations $ax-2y=c$ and $2x+by=-c$ are perpendicular and intersect at $(1, 5)$. What is $c$?

$\textbf{(A)}\ -13\qquad\textbf{(B)}\ -8\qquad\textbf{(C)}\ 2\qquad\textbf{(D)}\ 8\qquad\textbf{(E)}\ 13$

Solution

$\boxed{\textbf{(E)}\ 13}$

See Also

2017 AMC 10B (ProblemsAnswer KeyResources)
Preceded by
Problem 9
Followed by
Problem 11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AMC 10 Problems and Solutions

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