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What is the (y)-intercept of the graph of (f(x)=5)?

Answer and explanation

Correct answer: (5)

The graph of f(x)=5 is a horizontal line because the output remains 5 for every input x. The y-intercept is the point where the graph crosses the y-axis, and every point on that axis has x=0. Substituting x=0 into the function gives y=f(0)=5. Therefore the graph crosses the y-axis at the point (0,5), and the requested intercept value is 5.

Option B is correct. The number 0 identifies the x-coordinate of the intercept, but the y-intercept itself is usually reported by its y-value, 5, or by the point (0,5). The constant value of a constant function is its y-intercept whenever the function is defined at x=0, as it is here. The supplied answer and explanation are accurate.

Related tags

Standard-FunctionsConstant-FunctionY-Intercept

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