Let the function f be defined by f(x) = 2x-1. If 1/2f(t) = 10, what is the value of t?

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1

<p>(A) -9.5
(B) -3
(C) 3
(D) 9.5
(E) 10.5</p>

2

<p>is it E? </p>

3

<p>Haha yes, I just don’t know how to get to that solution</p>

4

<p>ok 1/2f(t)=10
so f(t)= 20
2x-1=20
2x=21
x= 10.5</p>