You are here:

Calculus/drawing and plotting graph

Advertisement

Expert: - 11/15/2008


Question
Sir
I am very confused that how to shade graph of inequalities?In my book the shaded part is a region but I dont know from where this region is drawn?I mean do i have to draw lines parallel to axes? Like i want to draw and shade the graph of   x - 2y < = 6(less than or equal to both)?Kindly guide me.Thanks

Answer
The best way I've found to do it starts with drawing the line
x - 2y = 6.  This would be better if it was in the form y = mx + b,
so subtract x from both sides, then divide the entire equation by -2.
NOw that it's in the form y = mx + b, m is the slope and m is y=b is the y interecept.

Once you have drawn this, take the point (0,0) and put it into the equation.  Is this x - 3y ≤ 6 when (x,y) = (0,0)?


Since it is, you want to shade in on the side of the line that has the origin in it.

Calculus

All Answers

Answers by Expert:

Ask Experts

Volunteer

Scotto

Expertise

Any kind of calculus question you want. I also have answered some questions in Physics (mass, momentum, falling bodies), Chemistry (charge, reactions, symbols, molecules), and Biology.

Experience

Experience in the area: I have tutored students in all areas of mathematics for over 25 years. Education/Credentials: BSand MS in Mathematics from Oregon State University, where I completed sophomore course in Physics and Chemistry. I received both degrees with high honors. Awards and Honors: I have passed Actuarial tests 100, 110, and 135.

Publications
Maybe not a publication, but I have respond to well oveer 7,500 questions on the PC. Well over 2,000 of them have been in calculus.

Education/Credentials
I aquired well over 40 hours of upper division courses. This was well over the number that were required. I graduated with honors in both my BS and MS degree from Oregon State University. I was allowed to jump into a few junior level courses my sophomore year.

Awards and Honors
I have been nominated as the expert of the month several times. All of my scores right now are at least a 9.8 average (out of 10).

Past/Present Clients
My past clients have been students at OSU, students at the college in South Seattle, referals from a company, friends and aquantenances, people from my church, and people like you from all over the world.

©2012 About.com, a part of The New York Times Company. All rights reserved.