Solving and Graphing Quadratic Equations

Find the vertex of 
f(x) = -x² - 4x + 12.

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

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

In order to graph a quadratic equation in standard form, the first two steps are to use the equation _____ to find the axis of symmetry, and then you can plug that value back into the equation to find the _____.

• -b/2a, vertex
• (x-h)^2, y-intercept
  
• (x-r1), solution
• ax^2, vertex

Tags

CCSS.HSF-IF.C.7A

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSF-IF.C.7A

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSF-IF.C.7A

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

What is a vertex?

• where the graph crosses the x-axis
• the y-intercept
• the maximum or minimum of the graph
• where the slope is vertical

In the standard form for quadratics: y=ax²+bx+c, what number can a never equal?

• 5
• 0
• 1
• 6

What do we call the graph of a quadratic?

• line
• vertex
• equation
• parabola

Tags

CCSS.HSF-IF.C.7A

In the standard form for quadratics, what do we need to be negative in order for the graph to open downwards?

• a
• b
• c
• x

Tags

CCSS.HSF-IF.C.7A