May 4 Quiz on Quadratics on concepts learned

This is the _________form of the quadratic equation.

• slope intercept 
• vertex form
• standard form
• matrix

This formula can help you find the __________

• k value 
• axis of symmetry
• h value
• x-intercept

Factor this trinomial
X ² + X  - 6=0

• (X+1)(X-6)
• (X+3)(X-2)
• (X-2)(X-3)
• (X+2)(X-3)

Tags

CCSS.HSA-REI.B.4B

Solve the factored quadratic for the solutions
X(X-4)=0

• x=0, X=-4
• x=0, x=4
• x=4
• no solutions

Tags

CCSS.HSA-REI.B.4B

Find the values of a, b and c in the equation 6x² – 12x = 0.

• a = 12; b = -12; c = 2

• a = 1; b = -2; c = 2

• a = 6; b = 12; c = 0

• a = 6; b = -12; c = 0

 When will a quadratic equation have two different Real roots?   

 Remember:  D is the Discriminant:   $D\ is\ b^2-4ac$  

• D = 0

• D > 0

• D < 0

• cannot determine

Tags

CCSS.HSA-REI.B.4B

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number and the nature of Solutions

• The y-intercept

Tags

CCSS.HSA-REI.B.4B

What is the discriminant in the Quadratic Formula?

• -b + 4ac

• b - 4ac

• -b² - 4ac

• b² - 4ac

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, how many solutions does the graph have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

If the discriminant is negative, how many solutions does the graph have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B