Quadratic Function Graph

The solutions of a quadratic equation are known as the _____.

• Zeros

• Roots

• x-intercepts

• Y-intercepts

• vertex

If we have the equation y=ax²+bx+c, how can we can find the x-coordinate of the vertex?

• -a

• -b/a

• b/2a

• -b/2a

Range:

• [-2.281,∞)

• (∞,-∞)

• (-2.281,∞)

• (-1,∞)

Tags

CCSS.HSF-IF.C.7A

Roots:

• (2.281)

• (-2)

• (-0.3465, .7215)

• .1875

The graph shows the function f(x)=x² in blue and another function g(x) in red.  Which could be the equation for g(x)?

• g(x)=3x²

• g(x)=1/3x²

• g(x) = x² - 3

• g(x) = (x-3)²

The graph shows the function f(x)=x² in blue and another function g(x) in red.  Which could be the equation for g(x)?

• g(x) = 2x²

• g(x) = 1/2x²

• g(x) = x² + 2

• g(x) = (x + 2)²

A line about which a figure is symmetric is the ____ __ ________

• Solution Set

• Intercept Formula

• Quadratic Function

• Axis of Symmetry

What is the equation for this axis of symmetry?

• y=3

• x=3

• x=5

• x=1

Tags

CCSS.HSF-IF.C.7A

On what interval is this function decreasing?

• [2,∞)

• (-∞,2)

• The entire function is decreasing.

• The entire function is increasing.

Tags

CCSS.HSF-IF.C.7A

Does the equation open up or down? 
Y = -3x² +7x - 2

• up

• down

• Neither; it opens to the right.

• Neither; it opens to the left.

Tags

CCSS.HSF-IF.C.7A