Quadratic Equations

Which equation is CORRECT for the graph?

ax²+bx+c=0  is the standard form of a quadratic equation.

• True

• False

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve the equation: 
5x² - 35x + 60 = 0

• x = 3,  -4

• x = -3,  4

• x = 3,  4

• x = -3,  -4

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

Find the roots of this equation
x² + x - 6 = 0

• 4, -1

• 3, -2

• -6, 1

• 2, -3

• Factor

• Subtract 6 from both sides to set the equation equal to 0

• Set each factor equal to 0

• Combine like terms

In the expression 4x²-5x+9 the leading coefficient is

• 9

• -5

• -4

• 4

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True

• False

The graph of a quadratic function is called

• a line

• a hyperbola

• a parabola

• a cubic