Test your understanding of function concepts
If f(x)=3x−2f(x) = 3x - 2f(x)=3x−2, what is f(4)f(4)f(4)?
10
12
14
6
If f(x)=x2f(x) = x^2f(x)=x2 and g(x)=x+1g(x) = x + 1g(x)=x+1, what is (f∘g)(2)(f \circ g)(2)(f∘g)(2)?
5
9
4
What is the inverse of f(x)=5x+10f(x) = 5x + 10f(x)=5x+10?
f−1(x)=5x−10f^{-1}(x) = 5x - 10f−1(x)=5x−10
f−1(x)=x−105f^{-1}(x) = \frac{x - 10}{5}f−1(x)=5x−10
f−1(x)=x+105f^{-1}(x) = \frac{x + 10}{5}f−1(x)=5x+10
f−1(x)=15x+10f^{-1}(x) = \frac{1}{5x + 10}f−1(x)=5x+101