The function f is defined by f(x) = √x – 10 for all positive numbers x. If u = f(t) for some positive numbers t and u. What is t in terms of u?
A. √(u+10)
B. (√u + 10)^2
C. √(u^2+10)
D. (u + 10)^2
E. (u^2 + 10)
please explain
f(x)=x-10
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The function f is defined by f(x) = √x – 10 for all positive numbers x. If u = f(t) for some positive numbers t and u. What is t in terms of u?
If u = f(t) for some positive numbers t and u, then u= √t – 10. now we'll have to solve for t.
u^2=t-10
u^2+10=t... which is what E tells us.
I hope that's easier to read and I hope it's correct
If u = f(t) for some positive numbers t and u, then u= √t – 10. now we'll have to solve for t.
u^2=t-10
u^2+10=t... which is what E tells us.
I hope that's easier to read and I hope it's correct