Unit 6 Test Review (Part II)

What is the quadratic formula?

• $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

• $b^2-4ac$

• $x=\frac{-b}{2a}$

Tags

CCSS.HSA-REI.B.4B

What part of the quadratic formula is the discriminant?

• $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

• $b^2-4ac$

• $x=\frac{-b}{2a}$

Tags

CCSS.HSA-REI.B.4B

What part of the quadratic formula gives you the x-coordinate of the vertex?

• $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

• $b^2-4ac$

• $x=\frac{-b}{2a}$

Which is the standard form of a quadratic equation?

• y = x²

• y = ax² + bx + c

• y = mx + b

• y = a(x - h)² + k

Tags

CCSS.HSA.SSE.A.2

Which is the vertex form of a quadratic equation

• y = x²

• y = ax² + bx + c

• y = mx + b

• y = a(x - h)² + k

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.C.8

If a function has a discriminant of 4, how many x-intercepts/roots/zeros/solutions does it have?

• 0

• 1

• 2

• 4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

If a function has a discriminant of 0, how many x-intercepts/roots/zeros/solutions does it have?

• 0

• 1

• 2

• 5

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

If a function has a discriminant of -4, how many x-intercepts/roots/zeros/solutions does it have?

• 0

• 1

• 2

• 5

Tags

CCSS.HSA-REI.B.4B

What type of value does the discriminant have by looking at the graph?

• positive

• negative

• 0

Tags

CCSS.HSA-REI.B.4B

What is the name of the imaginary line that cuts a parabola in half and goes through the vertex?

• the middle
• axis of symmetry
• minimum
• standard form