Standard Form and Parabolas

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

What direction does this parabola open AND does it stretch or shrink? Mark all that apply.
f(x) = -2x² + 4x - 6

• up

• down

• stretch

• shrink

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

Tags

CCSS.HSF-IF.C.7A

What is the green dot on the parabola called? Mark all that apply.

• maximum
• minumum
• roots
• zeros
• vertex

The standard form of a quadratic function is

• y = ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

The factor form of a quadratic function is

• y = ax² + bx + c

• a(x - h)² + k

• a(factor)(factor)

• Ax + By = C

Identify a, b, and c if y = +3x² +5x - 8

• a=3, b=5, c= - 8

• A=3, B=-8, C=5

• A=3x², B=5x, C=-8

• A=3x² , B=-8, C=5x

Does this parabola have a maximum or minimum?

• Maximum
• Minimum

What do we call the graph of a quadratic?

• line
• vertex
• equation
• parabola

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4