Name: _____________________
Date: _____________________
Ms. Lebo
Algebra II
Class Period (Circle One): 2 3 8
Quadratics #4 Quiz
(Ch. 4.1-4.4)
1.) Use the table below to answer parts a-c
x
-5
-4
-3
-2
-1
0
1
y
26
11
2
-1
2
11
26
a.) Is this a quadratic function, explain why or why not.
b.) If yes, what is the vertex point (h,k)?
2
c.) What is the quadratic function in vertex form? y=a(𝑥 − ℎ) +k
2.) What is the expression in factored form? (Hint USE AC earmuff method, since a≠1)
2
2𝑥 + 7𝑥 + 6
3.) Rewrite the equation in vertex form, Simplify final products to remove fractions.
2
y=4𝑥 + 7𝑥 + 3
b.) Now take the vertex form and convert back to standard form. Does the result give
you the original function?
c.) Graph the function and identify the vertex point.