Quadratic Review

What is the quadratic formula?

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What is the axis of symmetry formula?

• y = mx+b

• y = ax²+bx+c

• b² - 4ac

• x = -b/2a

Solve the equation using the quadratic formula.

x² + 7x = x - 10

• -6/2 + √4

• -6/2 - √4

• no solution

• ∅

Solve the equation using the quadratic formula.

4x² +9x = 12x

• x = {0, 3/4}

• x = {0, -3/4}

• x = {0, 4/3}

• no solution

Does this graph have a maximum or a minimum?

• maximum

• minimum

• I am not sure.

• neither

Does this graph have a y-intercept?

• yes

• no

• I am not sure.

What is the equation for standard form?

• y = x² + bx + c

• y = ax² + bx + c

• y = mx + b

• Ax + By = C

The graph of a quadratic function is called

• a line
• a hyperbola
• a parabola
• a cubic

3x² - 4 is a quadratic

• true
• false

Which of the following is NOT a quadratic function

• f(x) = -3x²
• f(x) = -5x - x²
• y = 3x³ - 4x + 5
• A = pi.r²