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OpenStudy (anonymous):
Find the value of k so that (–1, 5) lies on kx – 4y – k = 0. A. 20 B. –10 C. infinite number of solutions D. no solution
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hartnn (hartnn):
just plug in x= -1, y =5 in kx – 4y – k = 0. what do u get ?
OpenStudy (anonymous):
k= -10?
hartnn (hartnn):
lets see -k -4(5) -k =0 2k =-20 k=-10 is correct :) good!
OpenStudy (anonymous):
Thank you!(:
hartnn (hartnn):
welcome ^_^
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