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shyam sundar
Nov 12, 2020, 3:34:28 AM11/12/20
to Discussion forum for Mathematics for Data Science I
Hello,
Please note that x and y co-ordinates are reversed in the question. The solution is provided for y = x^2 -6x+k. Can you please solve for x= y^2 -6y+k?
Thank you!
Malabika Guha Mustafi
Nov 12, 2020, 6:14:05 AM11/12/20
to Discussion forum for Mathematics for Data Science I, shyam sundar
The parabola is not upside (open up) or downside ( open down) but right open or left open.
when x=0
then y^2-6y+k =0
The roots will be the y intercepts.
when y=0
then x=k. , x intercepts
Shyam
Nov 12, 2020, 1:07:03 PM11/12/20
to Malabika Guha Mustafi, Discussion forum for Mathematics for Data Science I
Thank you very much! The tutorial video shows it as otherwise. Thanks again!
Malabika Guha Mustafi
Nov 12, 2020, 9:49:24 PM11/12/20
to Discussion forum for Mathematics for Data Science I, sundar...@gmail.com, Discussion forum for Mathematics for Data Science I, Malabika Guha Mustafi
In tutorial, it is shown correct.
For the condition that it touches x axis once implies that vertex point on the x axis.
For the condition that it touches x axis once implies that vertex point on the x axis.
If in your assumption (when f(y) is a function of x and x is a quadratic equation)it was mentioned that the curve touches y axis at a point then then root same and at vertex point.
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