Linear And Quadratic Functions Worksheet With Answers Page 2
ADVERTISEMENT
1
2
3
4
5
662
CHAPTER 4. LINEAR AND QUADRATIC FUNCTIONS
2
If a quadratic is given in the form f (x) = ax
+ bx + c, then the x-coordinate of its
b
vertex is x =
. Since you already know the quadratic formula, you can remember it as
2a
part of the formula:
√
2
4ac
b
b
x =
.
±
2a
2a
This way of looking at the quadratic formula shows that if the graph has x-intercepts, they
b
occur as points on either side of the line x =
, which is the axis of symmetry of the
2a
graph. The summary on page 301 explains the steps in graphing a quadratic function.
Review problems: p302 #13,15,27,31,37,43,55,61,81,83
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education