Graphing Quadratic: Standard Form

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

If a is negative in the function, which way does the parabola

• up

• down

• left

• right

Tags

CCSS.HSF-IF.C.7A

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A

What's the axis of symmetry of y = 3x² - 6x + 4

• x=1

• x=-6

• x=2

• x=-1

Identify the equation for the graph.

Tags

CCSS.HSF-IF.C.7A

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

• y = -2

• x = 3

• x = -3

• y = 2

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

Answer explanation

The standard form of a quadratic equation is y = ax² + bx + c, where a, b, and c are constants. This form clearly shows the quadratic term (x²), making it the correct choice among the options.

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

• (0, 6)

• (0, -6)

• (6, 0)

• (-6, 0)

Answer explanation

To find the y-intercept, set x = 0 in the function f(x). f(0) = -2(0)^2 + 4(0) - 6 = -6. Thus, the y-intercept is (0, -6), which corresponds to the correct answer.

Tags

CCSS.HSF-IF.C.7A

What is the graph of y = -3x² + 12x - 16

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A

What is the graph of this function: y = x² - 4x

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A