Ch. 9.1 - Graphing Quadratic Equations 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

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

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes
• Axis of Symmetry
• Direction
• y-intercept

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 is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

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

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSF.IF.C.7

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

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

• parabola
• vertex
• graph
• point

Tags

CCSS.HSF.IF.C.7

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

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

Tags

CCSS.HSF.IF.C.7

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

.How many real roots does this parabola have?

• 3

• 2

• 0

• 1

Graph the quadratic.

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A