OpenStax, Contemporary Mathematics §5.7 Functions · Example 4 · Algebra · Functions

Functions · Example 4

Determine whether each equation is a function. Assume $x$ is the independent variable.

(a) $2 x + y = 7$
(b) $y = x^{2} + 1$
(c) $x + y^{2} = 3$

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OpenStax, Contemporary Mathematics · §5.7 Functions · Example 4

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