Review homework
Find the vertex.
Solve the simple quadratic.
17) 𝑦 = 𝑥 2 − 4𝑥 + 7
1) 𝑥 2 = 121
18) 𝑦 = −3𝑥 2 − 6𝑥 − 4
2) (𝑥 + 7)2 = 25
19) Given the function 𝑦 = |𝑥|, describe the
transformation.
Convert into (𝑥 − 𝑝)2 = 𝑞.
a) 𝑦 = |3𝑥| − 4
3) 𝑥 2 + 4𝑥 + 5 = 0
b) 𝑦 = 0.6|𝑥 + 9|
4) 𝑥 2 − 8𝑥 + 13 = 0
Find the zeros by using the Quadratic Formula.
5) 2𝑥 2 = −10𝑥 + 72
6) 6𝑥 2 + 3𝑥 = 84
Convert into vertex form.
7) 𝑦 = 𝑥 2 − 6𝑥 + 12
8) 𝑦 = −𝑥 2 + 2𝑥 − 2
9) Given the parent function 𝑓(𝑥), describe the
transformation.
a) 𝑓(𝑥) − 2
b) 𝑓(𝑥 − 2)
c) 5𝑓(𝑥)
d) 𝑓(0.4𝑥)
State how many and what type of solutions.
13) 𝑦 = 𝑥 2 − 4𝑥 − 5
14) 𝑦 = 4𝑥 2 + 8𝑥 + 4
Given the parent function in the table, create a table for
the new transformation.
𝑓(𝑥)
𝑥
𝑓(𝑥)
−2
4
−1
1
0
0
1
1
2
4
15) 3𝑓(𝑥) + 4
16) 4𝑓(𝑥 − 2)
20) Find and graph the key features.
𝑦 = 𝑥 2 + 4𝑥 + 3
x-ints:
y-int:
Vertex:
Axis of Symmetry:
Min or Max: ______
Opens up or down