What is the y-intercept of y = ax^2 + bx + c?

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Prepare for the Praxis Middle School Mathematics Exam with quizzes. Study with flashcards and multiple choice questions. Each question provides hints and detailed explanations. Ensure success on your test!

Multiple Choice

What is the y-intercept of y = ax^2 + bx + c?

Explanation:
The y-intercept is found where the graph crosses the y-axis, which is when x is 0. Plugging x = 0 into y = ax^2 + bx + c gives y = a·0^2 + b·0 + c = c. So the intercept is at (0, c). The terms with x vanish at x = 0, leaving just the constant term. If c happens to be zero, the intercept would be at the origin, but in general it is c.

The y-intercept is found where the graph crosses the y-axis, which is when x is 0. Plugging x = 0 into y = ax^2 + bx + c gives y = a·0^2 + b·0 + c = c. So the intercept is at (0, c). The terms with x vanish at x = 0, leaving just the constant term. If c happens to be zero, the intercept would be at the origin, but in general it is c.

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