Introduction of Quadratics

How many solutions are there?

• 0

• 1

• 2

What is the maximum maximum profit?

• 3100

• 60

• 2000

• 30

Which quadratic equation models the parabola shown?

• y = (x-2)(x-5)

• y = (x+2)(x+5)

• y = -(x+2)(x+5)

• y = -(x-2)(x-5)

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

What is the y-intercept?
y= -3x² + 6x - 6

• -3

• 6

• -6

• 3

How many solutions are there?

• 0

• 1

• 2

What is the y-intercept?
y= -x² -4x -5

• -1

• -5

• 1

• -4

How many solutions are there?

• 0

• 1

• 2

How many solutions are there?

• 0

• 1

• 2

How pairs of shoes are sold to reach maximum profit?

• 3100

• 60

• 2000

• 30