If x-y-1-2-3-4 then check whether f-x-y-x-y-4 is a function-

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Representation of Point on the Plane

If x,y∈1,2,...

Question

If $x, y \in {1, 2, 3, 4}$ then check whether $f = {(x, y) : x + y > 4}$ is a function?

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Solution

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Similar questions

x, y \in {1, 2, 3, 4}

f = {(x, y) : y = x + 1}

If f: X $\to$ Y is a function defined by f(x) = $2 x^{2} - x$ , check whether the function is an odd function or even function.

X = {1, 3, 5, 7}

X

R : A \to B

A = {1, 2, 3, 4}

B = {1, 3, 5}

R = (x, y) : x < y, x \in A, y \in B

R O R^{- 1}

R : A \to B

A = {1, 2, 3, 4}, B = {1, 3, 5}

R = {(x, y) : x < y, x \in A, y \in B}

R

R^{- 1}

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