21how abt drawing a parabola???
13 Answers
11i could only find one root was positive and one negative and they are not equal(numerically) from the graph
11for exact graph we should find the roots by some other method
which solves the problem( then why graphical)
1In the answer the graph consists of a parabola and a straight line.
What are u getting as roots?
One would be negative and the other positive.
62Ankit I dont see how to approach it graphically to get a "precise" answer
what we can do is something more qualitative..
1shall i post the graph as given in the book.
By the way roots given in the book are : 0.21 and -0.93.
well what the author of book has done is he has taken two seperate equations:
y=25x2
and
y=-18x+5
11yes he is trying to find the points of intersection
but for exact values how ??
62that is ok ankit.
but just by looking at the graph I am not sure how the author can find the roots
all we can say is some bound on the roots.
like there is one -ve on +ve root
etc etc..