Kedriya Vidyalaya Sangathan
WORKSHEET-ENGLISH
TOPIC-CLASS DISCUSSION
Name:-
Roll No.:-
Class V-
Date:-
1. Look at the picture. A discussion was going on in the park between two children. Imagine
and write what the discussion in the park between those friends.
2. Discuss and ot down the points to prepare a notice for the bulletin board. Use the given
clues.
.
Whom to be met?
What is the venue?
• Who has to come?
• What has to be planned?
Answers
Answer:
Standard Form
The Standard Form of a Quadratic Equation looks like this:
Quadratic Equation: ax^2 + bx + c = 0
a, b and c are known values. a can't be 0.
"x" is the variable or unknown (we don't know it yet).
Here are some examples:
2x2 + 5x + 3 = 0 In this one a=2, b=5 and c=3
x2 − 3x = 0 This one is a little more tricky:
Where is a? Well a=1, as we don't usually write "1x2"
b = −3
And where is c? Well c=0, so is not shown.
5x − 3 = 0 Oops! This one is not a quadratic equation: it is missing x2
(in other words a=0, which means it can't be quadratic)
Quadratic Graph
Have a Play With It
Play with the "Quadratic Equation Explorer" so you can see:
the graph it makes, and
the solutions (called "roots").
Hidden Quadratic Equations!
As we saw before, the Standard Form of a Quadratic Equation is
ax2 + bx + c = 0
Ques padne mai hi ada ganta laggaya