Quadratic in Standard Form

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

How many solutions does the equation in standard form represented by this related function have?

• No real solutions

• 1 solution

• 2 solutions

• Infinitely many solutions

Identify a, b, and c if y = -8+3x²+5x

• a=3, b=5, c=-8

• a=-8, b=3, c=5

• a=3x², b=5x, c=-8

• a=3x² , b=-8, c=5x

What is the equation for axis of symmetry?

• y = 3

• x = 3

• 3

• x= 1 and x = 5

Tags

CCSS.HSF-IF.C.7A

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

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

• parabola

• vertex

• pinnacle

• point

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots, zeros, solutions, or x-intercepts

Tags

CCSS.HSF-IF.C.7A

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

Graph the quadratic.

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7A

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -3

• x = 3

• x = -3

• y = 2