Solving Quadratics

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

What are the roots of the function?

• x = {4, -1}

• (-4, 1)

• x = {-4, 1}

• (4, 0) (-1, 0)

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

• x={-4, 2}

• x={-2, 4}

• x={-16}

• x={-4}

• x={-2, 4}

• x={-8}

• x=±8

• No real solution

• x={-3, 4}

• x={3, 4}

• x={-4, -3}

• x={-3}

Solve
4m² - 100 = 0

• m={25, -25}

• m={96}

• m={5, -5}

• m={-96}

Solve
a² + 2a - 24 = 0

• a = {-6, 4}

• a = {6, -4}

• a = {12, -2}

• a = {8, -3}

What is the first step in solving 
(x + 2)(x - 3) = 0      ?

• Plug in zero for x
• Solve for x
• FOIL
• Set each binomial factor equal to zero

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