Number and Types of Roots for Quadratic Equations

Which of these equations has two real roots?

Tags

CCSS.HSA-REI.B.4B

Find the zeros of this quadratic.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

y=(x-3)(x+4)

Mark the zeros on the graph.

Tags

CCSS.HSF-IF.C.7A

If x = -1 and x = 5 are two solutions to a quadratic equation, then what could the equation be?

Tags

CCSS.HSA-REI.B.4B

Which statement correctly describes the number and type of solutions in the equation \(x^2=20\)

• There is exactly one rational solution

• There is exactly one irrational solution

• There are two irrational solutions

• There are two rational solutions

Tags

CCSS.8.EE.A.2

The discriminant is

• ax²  + bx  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

What does the discriminant tell us?

• How many solutions there are

• The type of solutions there are

• What the solutions actually are

• What the x and y intercepts are

Tags

CCSS.HSA-REI.B.4B

Which words also mean the same thing as solutions?

• x intercepts

• roots

• zeros

• y intercepts

Tags

CCSS.HSF-IF.C.7C

Mathematical Equivalence

ON

Tags

CCSS.HSA-REI.B.4B