how to draw functions on a coordinate plane, and he

Jaime Coleman

Jaime Coleman

Answered question

2022-04-06

how to draw functions on a coordinate plane, and he mentioned something about the Y-Intercept being an important step in creating/solving a function. But, what exactly is a Y-Intercept?

Answer & Explanation

Madalynn Acosta

Madalynn Acosta

Beginner2022-04-07Added 15 answers

The y-intercept of a function f ( x ) is the point where the function intersects the y-axis (if in fact it does intersect the y-axis) and it is found by evaluating f ( 0 ), i.e., finding the value of f ( x ) when x = 0.
For example,
- The line f ( x ) = y = 3 x + 2 intersects the x-axis at when x = 0 : :when y = 3 0 + 2 = 2. This is the function's y-intercept.
- The parabola f ( x ) = y = 2 x 2 + 8 intersects the y-axis when x = 0 : :when y = 2 ( 0 ) 2 + 8 = 8. This is the function's y-intercept.

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