Practice Flashcards: SAT Math — solving quadratics and counting their solutions | Zestly

Question 1

Zero-product property

Accepted Answer

If $a \cdot b = 0$, then either $a = 0$ or $b = 0$.

Question 2

Why set to zero first?

Accepted Answer

The zero-product property only applies when the product equals zero, allowing us to isolate the roots.

Question 3

Quadratic formula

Accepted Answer

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

Question 4

Discriminant formula

Question 5

Discriminant > 0

Question 6

Discriminant = 0

Question 7

Discriminant < 0

Question 8

Rejecting solutions

Question 9

Standard form

Question 10

Sum of roots

Question 11

Product of roots

Question 12

Quadratic equation definition