Mathematics Achievement Test

It is the root of the quadratic equation.

• critical numbers

• critical equation

• critical formula

• critical name

Tags

CCSS.HSA-REI.B.4B

Which is the standard form of Quadratic Equation?

• ax²+bx+c=0, where x is an unknown variable, a, b, c are constants and a is not equal to zero

• ax²+bx-c=0, where x is an unknown variable, a, b, c are constants and a is not equal to zero

• ax²+bx+c=0, where x is an unknown variable, a, b, c are constants and a is equal to zero

• x²+bx+c=0, where x is an unknown variable, a, b, c are constants and a is not equal to zero

It is the Latin word for square.

• Quadratum

• Quadretum

• Quadrotum

• Quaratum

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

Solving quadratic equations by extracting square roots can be done if the quadratic equation is in what form?

• x²=a²

• x²=b²

• x²=c

• All of the above

Tags

CCSS.HSA-REI.B.4B

It is used to find the nature of roots of the quadratic equations.

• Discrimination

• Discriminant

• Quadratic Equation

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Where does the discriminant come from?

• The part of the quadratic formula

• The part of the quadratic equations

• The part of the quadratic formula underneath the numerator

• The part of the quadratic formula underneath the square root symbol

Tags

CCSS.HSA-REI.B.4B

What is the nature of roots if D>0 and is a perfect square?

• No real roots

• Real, imaginary, and natural

• Real, rational, and unequal

• Real, rational, and equal

Tags

CCSS.HSA-REI.B.4B

What are the critical numbers of (x+8)(x+11)?

• -8 and -11 because we equate the factors into 0

• 8 and 11 because the factors of the second term is already the critical numbers

• 8 or 11

• Neither 8 and 11

If we have the intervals of (-∞,8), (8,11), (11,∞), which is the test point of the intervals of our critical numbers?

• 9

• 7

• 15

• 0

What does the symbol “-∞“ in Quadratic Inequalities mean?

• Means that the number decreases with bound

• Means that the number flowing without bound

• Means that the number increases without bound

• Means that the number decreases without bound