Question

find the inverse of f(x)=2x^(2)+7

79

likes397 views

Sigrid

4.5

64 Answers

Given function :
f(x)=2x^2+7
Let the function be equal to y :
y=2x^2+7
Now, to find the inverse of the function, find the function for x in terms of y.
y-7=2x^2
x^2=\frac{y-7}{2}
x=\sqrt{\frac{y-7}{2}}
Hence, the inverse of the function is :
f^{-1}(x)=\sqrt{\frac{x-7}{2}}

Frequently asked questions (FAQs)

Math question: Find the 4th derivative of the function f(x) = 3x^4 - 2x^3 + 5x^2 - 6x + 1.

+

Math question: Find the prime factors of 200 using the factoring formula.

+

What is the angle formed by the line that passes through the point (-√3/2, -1/2) on the unit circle chart?

+

New questions in Mathematics