Which of the following relation represents a function?

Is this graph a function or not a function?

Given: $$f\left(x\right)=2x-3$$  .

What is $$f^{-1}\left(1\right)?$$  

Determine f^-1(2) given the following information about an invertible function, f(x)

f(1) = -3

f(2) = -2

f(-1) = 2

f(3) = -1

Which graph passes the horizontal line test?

Does this graph have an inverse?

Does this graph have an inverse?

f(x) = 3x + 10

g(x) = x - 2

Find f(g(0))

If f(x) = 3x-1 and g(x) = x²+2,

what is (f ° g)(x) ?

If $$f\left(x\right)=x^2$$   and  $$g\left(x\right)=\frac{1}{x^2}$$   find $$\left(f\circ g\right)\left(-1\right)$$  

If $$f\left(x\right)=\frac{1}{x}$$   and  $$g\left(x\right)=3x+2$$   find $$\left(g\circ g\right)\left(-4\right)$$  

If $$f\left(x\right)=\frac{1}{x}$$   and  $$g\left(x\right)=3x+2$$   find $$\left(f\circ g\right)\left(2\right)$$  

If $$f\left(x\right)=2x$$   and  $$g\left(x\right)=2x^2-1$$   find $$g\left(f\left(x\right)\right)$$  

If $$f\left(x\right)=2x$$   and  $$g\left(x\right)=2x^2-1$$   find $$f\left(g\left(x\right)\right)$$  

If $$f\left(x\right)=2x$$   and  $$g\left(x\right)=2x^2-1$$   find $$g\left(f\left(-1\right)\right)$$  

If $$f\left(x\right)=2x$$   and  $$g\left(x\right)=2x^2-1$$   find $$f\left(g\left(3\right)\right)$$