Jodi L.
asked • 11/12/17Let f(x)=2x−1. If 3f(a)=15, what is the value of f(2a)?
Let f(x)=2x−1. If 3f(a)=15, what is the value of f(2a)?
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1 Expert Answer
Andy C. answered • 11/12/17
Tutor
4.9
(27)
Math/Physics Tutor
3( 2a - 1) = 15
2a - 1 = 5
2a = 6
a=3
f(2*3) = f(6) = 2(6)-1 = 12 - 1 = 11
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Michael J.
11/12/17