Alg 2- Midterm Exam (7th 24-25)

Front

Simplify √-1

Back

i

Front

What is the discriminant of -2x² − x − 1 = 0?

Back

-7

Front

Classify 17/10

Back

Rational

Front

What is the simplified form of (-9 + 5i) + (3 -2i)?

Back

-6 + 3i

Front

What inequality does the number line graph represent if it shows all values less than -4?

Back

x < -4

Front

Define a rational number.

Back

A number that can be expressed as the quotient of two integers, where the denominator is not zero.

Front

What is the standard form of a quadratic equation?

Back

ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0.

Front

How do you find the vertex of a parabola given in standard form?

Back

The vertex can be found using the formula (-b/2a, f(-b/2a)).

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a) for the equation ax² + bx + c = 0.

Front

What does the discriminant tell you about the roots of a quadratic equation?

Back

If the discriminant is positive, there are two real roots; if zero, one real root; if negative, two complex roots.