Thread: graphing

how do i do it to graph this in a calculator x= y^2 + 2y + 1

Don't laugh.

Graph this: y = x^2 + x + 1

Then turn your calculator 1/4 turn clockwise. :-)

it is funny, but there is not another way to do it? like solving for y

You can solve for y, but you may not be happy with the results. You should get TWO different pieces. It is not a "function", so it takes a bit more effort.

I'd just turn the calculator. Don't you think your classmates would get a hoot out of it? Maybe your teacher has a sense of humor? It demonstrates a knowledge of reflection across the line x = y. Don't you want to be the first on in your class to claim that knowledge?

Hahaha you were probably told to graph the inverse of as TKHunny said.

You can't take the inverse of a quadratic in polynomial form. You have to complete the square and put it into Turning Point form then swap x and y and solve for y.

Okay, technically, you should grab your calculator by the upper right and lower left corners and flip it over, but in this case the 90º rotation is a good substitute.

Originally Posted by homerb

how do i do it to graph this in a calculator x= y^2 + 2y + 1

Please post the entire question.

(Otherwise: , which is of a form that can be eneterd into a graphics calculator.)