Flashcard 4 - Math Flashcard Set for the ACT

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The correct answer is:

if/where the function crosses the x-axis (x-intercepts)

Set the function equal to 0, factor (use quadratic formula if necessary), and solve for x.
The correct values of x will yield a true statement when plugged back into the equation.


Explanation:

Quadratic formula:

\(x = \frac{-b±\sqrt{(b^2-4ac)}}{2a}\),

where standard form of a quadratic function is \(f(x) = ax^2 + bx + c\).

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