Solving quadratics

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Solve 
2x² + 7x - 15 = 0

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

The x-intercepts of a quadratic equation are known as the _____.

• vertices
• squares
• zeros
• formulas

Tags

CCSS.HSF-IF.C.7A

The x-intercepts of a quadratic equation are known as the _____.

• Vertices
• Roots
• Squares
• Formulas

Tags

CCSS.HSF-IF.C.7A

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

What  are the solutions of this graph?

• -2 and 3
• -1/2 and -6
• -2 and -6
• 3 and -6

Solve  7x²  - 28x = 0

• x = 4, x = 7
• x = 0, x  = 4
• x = 0, x = -4
• x = -4, x = -7