Unit 4 Pretest: Quadratic Functions & Equations

The graph of a quadratic function is called

• a line

• a hyperbola

• a parabola

• a conic

Tags

CCSS.HSF-IF.C.7A

Standard form of a quadratic equation

• y = x²

• y= ax² + bx + c

• y= mx + b

• y = x

Which of the following is NOT a quadratic function

• f(x) = -3x²

• f(x) = -5x - x²

• y = 3x³ - 4x + 5

• A = pi.r²

When a parabola opens downward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola

When a parabola opens upward the vertex is

• a minimum

• a maximum

• a vertex

• a parabola

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive
• Maximum value, because the b value is positive
• Maximum value, because the a value is positive
• Minimum value, because the c value is negative

Does this graph have maximum or minimum value?

• maximum

• minimum

• neither

• both

Tags

CCSS.HSF-IF.C.7A

Does this graph have maximum or minimum value?

• Maximum

• Minimum

• Both

• Neither

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

What is the green line called?

• Parabola

• Discriminant

• Roots

• Axis of Symmetry

Tags

CCSS.HSF-IF.C.7A