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OpenStudy (anonymous):
Use the function to answer the qustion. f(x) = 5x - 10 what is the value of f-1 (-3) ?
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OpenStudy (anonymous):
find the inverse of the function...
OpenStudy (anonymous):
A: 9.4 B: 1.4 C: -5 D: -25
OpenStudy (anonymous):
answer is 7/5
OpenStudy (anonymous):
here y=5x-10 or x=(10+y)/5 hence the reqd answer is (-3+10)/5=7/5=1.4
OpenStudy (anonymous):
@akash123 what?
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OpenStudy (anonymous):
answer is 7/5 = 1.4
hartnn (hartnn):
there is an easier way out, just put f(x)= -3 and find x -3 = 5x-10 x=?
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