The y-intercept of a function f(x) is found by evaluating the function at x = 0. This uses functional notation (see Note) to express the following idea. The y-intercept is the value of the

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Find the y-intercept of y = 4x 2 - 3x using the following steps: y = 4 (0)2 - 3 (0) (Replace x with 0.) y = 4* 0 - 0 (simplify) y = 0 - 0 (simplify) y = 0 (simplify) The y -intercept is (0,0).

How to Find the Y Intercept of a Quadratic in Vertex Form As with standard form, simply plug 0 in as the value of x and solve. Here's an example. Let's say your function is y =